CN209727722U - A kind of experimental provision for testing unsaturation granular materials inter-granular contact angle - Google Patents
A kind of experimental provision for testing unsaturation granular materials inter-granular contact angle Download PDFInfo
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- CN209727722U CN209727722U CN201920397790.XU CN201920397790U CN209727722U CN 209727722 U CN209727722 U CN 209727722U CN 201920397790 U CN201920397790 U CN 201920397790U CN 209727722 U CN209727722 U CN 209727722U
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- pressure chamber
- contact angle
- granular
- unsaturation
- temperature
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- 239000008187 granular material Substances 0.000 title claims abstract description 24
- 238000012360 testing method Methods 0.000 title claims abstract description 24
- 239000002245 particle Substances 0.000 claims abstract description 31
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000000463 material Substances 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 239000011521 glass Substances 0.000 claims description 3
- 241001206171 Stomoxys omega Species 0.000 claims 1
- 238000002474 experimental method Methods 0.000 abstract description 10
- 238000000034 method Methods 0.000 abstract description 6
- 238000009434 installation Methods 0.000 description 6
- 239000007788 liquid Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 239000011230 binding agent Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000003708 edge detection Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000011236 particulate material Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 229940099259 vaseline Drugs 0.000 description 1
Abstract
The utility model discloses a kind of unsaturation granular materials inter-granular contact angle test device, which includes pressure chamber, particle mobile platform, drop control system, temperature humidity control system and exterior terminal.Pressure chamber is mounted on particle mobile platform groove in base；Particle mobile platform is located in pressure chamber and is made of pedestal, guide rail, push bolt and sliding platform；Drop control system is precisely controlled using rubber head dropper；Temperature humidity control system realizes the control to pressure chamber's inner suction；Exterior terminal is large aperture high-definition digital camera, computer and sensor.The utility model gives a kind of granular materials inter-granular contact angle experimental method, and this method, which is used, receives image data and data of the Temperature and Humidity module by the output end of computer connection large aperture high-definition digital camera and sensor such as above-mentioned contact angle experiments device.Compared with traditional method, this method is directly used in test granular materials inter-granular contact angle, and accuracy is high, easy to operate, use easy to spread.
Description
Technical field
The utility model belongs to centrifugal modeling Instrument technology field, is related to the test of unsaturation granular materials, in particular to
A kind of experimental provision for testing unsaturation granular materials inter-granular contact angle.
Background technique
Unsaturation granular materials, such as rock-soil material is due to there is the mechanics for being present such that material of suction (capillary force)
Property becomes extremely complex.There are many factor for influencing suction, and the presence of air -water interface is basic reason, use connect at present
Feeler carrys out the interfacial characteristics between any two-phase substance of accurate definition.The accurate test of contact angle is a technology difficulty all the time
Topic, existing technological means is mainly directly dripped using drop to be shown take pictures that contact angle is calculated in sample, due to big
Partial particulate material, such as rock-soil material, by the randomness of three phase-space distributions of solid-liquid-gas, it is difficult to accurately measure inter-granular contact
Angle.
Summary of the invention
In order to overcome the disadvantages of the above prior art, the purpose of this utility model is to provide a kind of test unsaturation particles
The experimental provision at material inter-granular contact angle, the difficulty at granular materials inter-granular contact angle can not accurately be obtained by solving traditional test means
Topic.
To achieve the goals above, the technical solution adopted in the utility model is:
It is a kind of test unsaturation granular materials inter-granular contact angle experimental provision, including pressure chamber 3, particle mobile platform,
Drop control system, temperature humidity control system and exterior terminal, in which:
The particle mobile platform is located in pressure chamber 3, including pedestal 4, is provided with and horizontal detachably leads on pedestal 4
Rail 6, there are two contour for placing the sliding platform 2 of unsaturation particle to be measured, each sliding for setting in removable rail 6
The push bolt 8 of level engaged therewith is provided with below platform 2, push bolt 8 passes through 3 side wall of pressure chamber, and tail end is located at pressure
Outside power room 3, corresponding the moving horizontally in removable rail 6 of sliding platform 2 is controlled by push bolt 8；
The drop control system includes rubber head dropper 1, and rubber head dropper 1 passes through the top surface of pressure chamber 3, and water dropper height is high
In the top surface of sliding platform 2；
The temperature humidity control system includes control of temperature and humidity device 11, and actuating station is located in pressure chamber 3, control terminal
Outside pressure chamber 3, the control to 3 inner suction of pressure chamber is realized；
The exterior terminal includes the large aperture high-definition digital camera 9 being set to outside pressure chamber 3 and computer 10 and connection
In the sensor 12 of 3 side wall of pressure chamber, the wherein front of two sliding platforms 2 of alignment lens of large aperture high-definition digital camera 9,
The sensor 12 acquires the data of the Temperature and Humidity module of pressure chamber 3, and the computer 10 connects 9 He of large aperture high-definition digital camera
The output end of sensor 12 receives image data and data of the Temperature and Humidity module.
The pressure chamber 3 is made of high inorganic glass materials thoroughly, and the bottom of particle mobile platform is installed on by groove 14
On seat 4.
The removable rail 6 has two, is parallel to each other, and is arranged on pedestal 4 by bracket, each sliding platform 2 is ridden
Across in two removable rails 6, the lower part of sliding platform 2 and the threaded portion of push bolt 8 cooperate.
The rubber head dropper 1 is located above the central location of two sliding platforms 2.
Control of temperature and humidity device 11 can distinguish the U.S. Xuan Ze Omega CN32Pt and RHCN-3 type control of temperature and humidity device,
Its outfit standard USB, optional Ethernet etc. realize communication function, and with the TCP/IP transmitted in data packet form data of standard, control
End processed can be operated in controller panel, and actuating station is located inside pressure chamber.
The utility model additionally provides the survey of the experimental provision based on the test unsaturation granular materials inter-granular contact angle
Method for testing includes the following steps:
Step 1: mobile two sliding platforms 2 are close to each other, choose particle sample and are respectively placed in two sliding platforms 2
Sides adjacent top side location；
Step 2: setting 3 internal temperature of pressure chamber and humidity；
Step 3: rubber head dropper 1 is used, between liquid is drop by drop instilled particle, forms it into liquid bridge, and record instillation
Liquid volume, open simultaneously large aperture high-definition digital camera 9, certain time interval be set, acquisition image data is continuously shot,
And by image data real-time Transmission to computer 10；
Step 4: changing condition, and during the experiment, rotation push bolt 8 changes grain spacing, and grain spacing passes through
The circle number that push bolt 8 rotates determines, to obtain under different spacing, the changing rule at interparticle contact angle；Or by changing
Temperature and humidity make 3 internal suction of pressure chamber change, to obtain granular materials inter-granular contact angle when different suction
Variation.
In the utility model, particle size range can be 0.1mm~2mm, and 1 precision of rubber head dropper can be 0.05ml.Particle
It can be cohered respectively by organic binder on two sliding platforms 2.
Compared with prior art, the utility model is directly used in test granular materials inter-granular contact angle, and accuracy is high, operation
Simply, the contact angle of direct test sample is avoided to be used to reflect intergranular contact angle, use easy to spread.
Detailed description of the invention
Fig. 1 is the utility model unsaturation interparticle contact angle test device installation diagram.
Fig. 2 is the utility model experimental provision installation effect diagram.
Fig. 3 is that the utility model unsaturation interparticle contact angle test device fills installation diagram top view.
Fig. 4 is the utility model unsaturation interparticle contact angle test device pressure chamber structure schematic diagram (top view).
Fig. 5 is F-F cross-sectional view in Fig. 4.
Fig. 6 is G-G cross-sectional view in Fig. 4.
Fig. 7 is K-K cross-sectional view in Fig. 4.
Fig. 8 is C-C cross-sectional view in the base part figure namely Fig. 3 of the utility model particle mobile platform.
Fig. 9 is D-D cross-sectional view in the base part figure namely Fig. 3 of the utility model particle mobile platform.
Figure 10 is the utility model detachable base part drawing.
Figure 11 is H-H cross-sectional view in Figure 10.
Figure 12 is the utility model particle mobile platform removable rail part drawing.
Figure 13 is the utility model particle mobile platform sliding platform part drawing (top view).
Figure 14 is A-A cross-sectional view in Figure 13.
Figure 15 is B-B cross-sectional view in Figure 13.
Figure 16 is the utility model particle mobile platform push bolt part drawing.
Figure 17 is E-E cross-sectional view in Figure 16.
Figure 18 is the removable head part drawing of the utility model particle mobile platform push bolt.
Figure 19 is F-F cross-sectional view in Figure 18.
For convenience of with reference to using, related advisory size (unit: 0.1mm) is labelled in attached drawing.
Specific embodiment
The embodiments of the present invention is described in detail with reference to the accompanying drawings and examples.
As shown in Figure 1, Figure 2 and Figure 3, a kind of experiment dress for testing unsaturation granular materials inter-granular contact angle of the utility model
It sets, including pressure chamber 3, particle mobile platform, drop control system, temperature humidity control system and exterior terminal, each section
It cooperates, can accurately measure granular materials inter-granular contact angle, and in experimentation temperature controllable, humidity and intergranular spacing,
Wherein:
With reference to Fig. 4, Fig. 5, Fig. 6 and Fig. 7, pressure chamber 3 is made of high inorganic glass materials thoroughly, is conducive to shoot high definition figure
Piece, for the ease of processing, pressure chamber 3 is using square and designs 1mm groove, and is installed on particle mobile platform by groove
On pedestal 4.
Particle mobile platform is located in pressure chamber 3, for adjusting grain spacing, including pedestal 4, with reference to Fig. 8 and Fig. 9, bottom
Seat 4 includes fixed part and the removable section 5 positioned at fixed part center, and two horizontal phases are provided on fixed part
Mutually parallel removable rail 6, removable rail 6 is symmetrical about removable section 5, and 5 top of removable section is push bolt 8
Installation space is provided, but in order to guarantee pressure chamber's temperature and humidity, 4 aperture position of pedestal is assembled by bolt, as Figure 10 with
Shown in Figure 11.Removable rail 6 is arranged on pedestal 4 by bracket, as shown in figure 12, opens up among every removable rail 6
The keyhole 13 of diameter 2mm, pedestal corresponds to 18, for installing sliding platform 2.As shown in Figure 13, Figure 14 and Figure 15, sliding platform
2 totally two pieces, etc. high settings, for placing unsaturation particle to be measured, each sliding platform 2 is ridden in two removable rails 6,
The push bolt 8 of level engaged therewith is provided with below each sliding platform 2, as shown in Figure 16, Figure 17, Figure 18 and Figure 19,
The header arrangement of push bolt 8 has removable head 7, and push bolt 8 passes through 3 side wall of pressure chamber, and tail end is located at outside pressure chamber 3,
The threaded portion of push bolt 8 and the lower part of sliding platform 2 cooperate, flat by the i.e. controllable corresponding sliding of rotation push bolt 8
Platform 2 is moved horizontally removable rail 6.
Drop control system is used to increase drop, including rubber head dropper 1 in unsaturation granular materials intergranular, by rubber head dropper
1 realization is precisely controlled, and precision 0.05ml, 1 through hole 15 of rubber head dropper passes through the top surface of pressure chamber 3, and it is flat to be located at two slidings
The central location of platform 2, and water dropper height is higher than the top surface of sliding platform 2.
Temperature humidity control system keeps measurement result reliably credible, including temperature for accurately controlling 3 internal environment of pressure chamber
Degree, humidity controller 11, actuating station are located in pressure chamber 3, and control terminal is located at outside pressure chamber 3, realize to 3 inner suction of pressure chamber
Control.
Exterior terminal is used for transmission data and controls experimental variable, including the large aperture being set to outside pressure chamber 3
High-definition digital camera 9 and computer 10 and the sensor 12 for being connected to 3 side wall of pressure chamber, wherein large aperture high-definition digital camera 9
Two sliding platforms 2 of alignment lens front, for shooting high definition picture；The warm and humid degree of the acquisition of sensor 12 pressure chamber 3
According to terminal of 10 one side of computer as temperature humidity control system is led to for 3 internal temperature of pressure chamber and humidity to be arranged
Excess temperature, humidity controller 11 and sensor 12 can realize the control of temperature and humidity in experimentation, on the other hand connect big
The output end of aperture high-definition digital camera 9 and sensor 12 receives image data and data of the Temperature and Humidity module, while also can be used as data
The hardware components of processing routine.
Control of temperature and humidity device 11 can distinguish the U.S. Xuan Ze Omega CN32Pt and RHCN-3 type control of temperature and humidity device,
Its outfit standard USB, optional Ethernet etc. realize communication function, and with the TCP/IP transmitted in data packet form data of standard, control
End processed can be operated in controller panel, and actuating station is located inside pressure chamber.
According to the device, the accurate measurement at unsaturation granular materials inter-granular contact angle: initial time can be fast implemented, two
Grain is adjacent and is respectively placed on two pieces of sliding platforms 2, makes sliding platform 2 by adjusting push bolt 8 during the experiment
It is moved in removable rail 6, to realize test different spacing interparticle contacts angle；It can by control of temperature and humidity device 11
The control for realizing pressure chamber's inner suction, to realize the measurement at granular materials inter-granular contact angle under different suction.Work to be tested
After the completion, the equal disassembling cleaning of all devices is convenient for preservation management.
Specific step is as follows for the utility model test method:
Step 1: instrument assembly.Attached drawing 4-19 gives related advisory size, is processed according to each part drawing drawing,
The machining accuracy grade of tolerance requires to be IT01.Part is after processing is completed:
Firstly, processing is lubricated to laboratory apparatus each section, to reduce each section frictional resistance；
Secondly, sliding platform 2, is first mounted in removable rail 6, by the sliding after installation by installation particle mobile platform
Platform 2 and removable rail 6 are placed on pedestal 4, and are installed in by the keyhole of 6 mid diameter 2mm of removable rail
On pedestal 4, after being installed, two sliding platforms 2 are aligned, guarantee leaves no gaps therebetween, then by push bolt 8
Removable head 7 removes, and removable head 7 is installed by base openings position, and after being installed, removable section 5 is passed through bolt
It tightens, to prevent 3 gas leakage of pressure chamber；
Then, vaseline is smeared in pedestal 4, is installed on groove in base its object is to seal, and by pressure chamber 3, and
Control of temperature and humidity device 11 and sensor 12 are connected, has set up large aperture high-definition digital camera 9, entire experimental facilities installs
At.
Finally, mobile two sliding platforms 2 are close to each other；
Step 2: choosing particle sample, and particle size range is 0.1mm~2mm；Two particles are distinguished by organic binder
The top side location in two pieces of 2 sides adjacents of sliding platform is cohered, keeps opposing stationary between sliding platform 2, grain spacing is logical
The circle number for crossing the rotation of push bolt 8 determines.
Step 3: setting external condition.3 internal temperature of pressure chamber and humidity are configured, by Kelvin equation it is found that
After setting certain temperature and humidity, certain suction is kept in pressure chamber 3, i.e. external environment keeps certain.
Step 4: it measures.Liquid bridge is formed it between liquid is drop by drop instilled particle using rubber head dropper 1,
And the liquid volume of instillation is precisely recorded, large aperture high-definition digital camera 9 is opened simultaneously, certain time interval are set
(generally should be how many 0.5s) carries out shooting and obtains data, and real-time data transmission is caused computer 11.
Step 5: changing condition, and during the experiment, on the one hand rotatable push bolt 8 changes grain spacing, particle
Spacing is determined by the circle number that push bolt 8 rotates, to obtain under different spacing, the changing rule at interparticle contact angle；Separately
On the one hand, by changing temperature and humidity 3 internal suction of pressure chamber can also be changed, to obtain, when different suction,
The variation at granular materials inter-granular contact angle；
Step 6: step 4 is obtained the image data shot by high-definition digital camera, is transmitted by signal by data analysis
To computer 11, artificial observation perceives the changing rule at interparticle contact angle under different experimental conditions.Alternatively, may be based on image
The application program that identification facility case is worked out dedicated for interparticle contact angular measurement, automatically processes image data, obtains different
The changing rule of contact angle under experiment condition.
Step 7: experiments experiment instrument removal after the completion of experiment, can be fitted into special device by instrument removal cleaning,
It prevents and treats laboratory apparatus and breakage occurs, to influence experimental precision.
In step 6, data processor is cumbersome for reducing the artificial contact angle bring that calculates, and is based on image recognition work
Tool case is worked out, and contact angle analysis is carried out.
Data processor: data processor is based on MATLAB image recognition tool case and works out, and mainly includes
Four parts, first part, interface section, for importing image data；Second part, format conversion, is used for image data class
Type is converted to matrix data, is further converted into gray level image and binary picture；Part III, Image Edge-Detection are used for
Obtain contact line profile；Part IV calculates contact angle.
Claims (5)
1. it is a kind of test unsaturation granular materials inter-granular contact angle experimental provision, which is characterized in that including pressure chamber (3),
Grain mobile platform, drop control system, temperature humidity control system and exterior terminal, in which:
The particle mobile platform is located in pressure chamber (3), including pedestal (4), is provided on pedestal (4) horizontal detachable
Guide rail (6) is arranged there are two the contour sliding platform (2) for being used to place unsaturation particle to be measured on removable rail (6),
The push bolt (8) of level engaged therewith is provided with below each sliding platform (2), push bolt (8) passes through pressure chamber (3)
Side wall, tail end are located at pressure chamber (3) outside, control corresponding sliding platform (2) in removable rail (6) by push bolt (8)
Move horizontally；
The drop control system includes rubber head dropper (1), and rubber head dropper (1) through hole (15) passes through the top surface of pressure chamber (3),
And water dropper height is higher than the top surface of sliding platform (2)；
The temperature humidity control system includes control of temperature and humidity device (11), and actuating station is located in pressure chamber (3), control terminal
Outside positioned at pressure chamber (3), the control to pressure chamber (3) inner suction is realized；
The exterior terminal includes the large aperture high-definition digital camera (9) being set to pressure chamber (3) outside and computer (10) and connects
It is connected to the sensor (12) of pressure chamber (3) side wall, wherein two sliding platforms of the alignment lens of large aperture high-definition digital camera (9)
(2) front, the data of the Temperature and Humidity module of sensor (12) acquisition pressure chamber (3), the computer (10) connect the big light
The output end of high-definition digital camera (9) and sensor (12) is enclosed, image data and data of the Temperature and Humidity module are received.
2. testing the experimental provision at unsaturation granular materials inter-granular contact angle according to claim 1, which is characterized in that described
Pressure chamber (3) is made of high inorganic glass materials thoroughly, and is installed on the pedestal (4) of particle mobile platform by groove (14).
3. testing the experimental provision at unsaturation granular materials inter-granular contact angle according to claim 1, which is characterized in that described
Removable rail (6) has two, is parallel to each other, and is arranged on pedestal (4) by bracket, each sliding platform (2) rides in two
In removable rail (6), the lower part of sliding platform (2) and the threaded portion of push bolt (8) cooperate.
4. testing the experimental provision at unsaturation granular materials inter-granular contact angle according to claim 1, which is characterized in that described
Rubber head dropper (1) is located above the central location of two sliding platforms (2).
5. testing the experimental provision at unsaturation granular materials inter-granular contact angle according to claim 1, which is characterized in that described
Control of temperature and humidity device (11) selects U.S. Omega CN32Pt and RHCN-3 type control of temperature and humidity device, control terminal controlling
Device panel operation, actuating station are located inside pressure chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920397790.XU CN209727722U (en) | 2019-03-27 | 2019-03-27 | A kind of experimental provision for testing unsaturation granular materials inter-granular contact angle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920397790.XU CN209727722U (en) | 2019-03-27 | 2019-03-27 | A kind of experimental provision for testing unsaturation granular materials inter-granular contact angle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209727722U true CN209727722U (en) | 2019-12-03 |
Family
ID=68689023
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920397790.XU Withdrawn - After Issue CN209727722U (en) | 2019-03-27 | 2019-03-27 | A kind of experimental provision for testing unsaturation granular materials inter-granular contact angle |
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| Country | Link |
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| CN (1) | CN209727722U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109932305A (en) * | 2019-03-27 | 2019-06-25 | 西安交通大学 | A kind of experimental provision and method for testing unsaturation granular materials inter-granular contact angle |
-
2019
- 2019-03-27 CN CN201920397790.XU patent/CN209727722U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109932305A (en) * | 2019-03-27 | 2019-06-25 | 西安交通大学 | A kind of experimental provision and method for testing unsaturation granular materials inter-granular contact angle |
| CN109932305B (en) * | 2019-03-27 | 2024-04-12 | 西安交通大学 | Experimental device and method for testing inter-particle contact angle of unsaturated particulate material |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20191203 Effective date of abandoning: 20240412 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20191203 Effective date of abandoning: 20240412 |