CN107621429B - A kind of room temperature suspends by force slurry Stability Determination device and method - Google Patents
A kind of room temperature suspends by force slurry Stability Determination device and method Download PDFInfo
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Abstract
The present invention relates to a kind of Stability Determination device and methods, belong to geotechnical testament technical field, and in particular to a kind of room temperature suspends by force slurry Stability Determination device and method.Cardinal principle is the upper volumetric taper two parts of slurry container point, slurries normally settle unaffected, and by being connected by order between two parts above and below container, after gently being revolved after slurries are stood to setting time by enabling valve close upper and lower level container connection, upper and lower level container slurries are passed through into top/bottom part respectively, its weight of weighing is poured out, of poor quality by upper and lower level slurries can obtain slurries settleability.
Description
Technical field
The present invention relates to a kind of Stability Determination device and methods, belong to geotechnical testament technical field, and in particular to a kind of
Room temperature, which suspends by force, starches Stability Determination device and method.
Background technique
The particularity of coal-mine fire requires fire extinguishing slurry strong (bleeding rate is low) rich in filling sealing solid phase particles, water-retaining property；
The permanent reliable attribute specification filling slurry of the macroscopic-void filling engineering filling of such as coal mine, Gypsum Mine (administer) is often with there is larger grain
Diameter solid phase particles and transport stability；The sedimentation stability of drilling fluid heavy weight additive is one of its key property in drilling engineering.It can
See that suspension stability is critically important one of the performance parameter of slurries, fast and accurately test equipment and technique study are rather important.
The measurement of pulp stability and evaluation method mainly have sedimentation, Zeta potential method, size distribution method and light splitting
Photometer measuring method.Potentiometry equipment is more complex, cost is also high；It is shallower with certain light transmittance that spectrophotometer method is suitable only for color
Suspension.
The stability of conventional cement slurry is characterized using bleeding rate, by being drawn in the specific time of sample container top with suction pipe
The bleeding quantity of precipitation determines.High-moisture-retention slurries bleeding rate is extremely low, can not secrete the tax rate with the method that clear water is precipitated measurement is measured.
Conventional suspension index is suspension degree, and measuring method is to dry 30 grams of suspending agents of sample by regulation, and water is added to grind
After be diluted to 1000 milliliters, stir evenly standing 20 points, read supernatant liquor volume be suspension degree, unit is milliliter；This method is
The relatively small clay mineral suspension performance test methods of suspension, during test discovery using the method be difficult to measure fiber and
The suspending agent suspension of the water solubility superelevation such as pectin, solid phase sedimentation in soil/husky mud in suspension/mortar formed, which is even added, is
One progressive formation, solid-liquid does not have particularly apparent interface, i.e., without apparent supernatant, is difficult to measure suspension slurry with this method
Liquid stability.
In the prior art there is also with spectrophotometer methods, but for it is such with loess, flyash or sand for base-material
Suspension slurry, solid phase particles are big, and light is difficult to penetrate, and are conflicted with photometric working principle is in charge of, as a result remained to be discussed.
Chinese patent " a kind of test method of the suspension stability of drilling fluid " discloses one kind and measures static several hours
Afterwards in 500ml graduated cylinder drilling fluid interlayer density contrast up and down method, equipment therefor is mainly that density claims and 500ml graduated cylinder, measurement
Precision is weak with convenience.
Chinese patent " a kind of suspending stabilized system safety testing device and test method " discloses a kind of for testing high temperature and pressure
The suspending stabilized system safety testing device and test method of the suspending stabilized performance of lower high density working solution solid phase particles, device therefor master
There are multiple particular components such as high pressure resistant pipeline, constant pressure constant speed pump, high temperature high voltage resistant container, structure is complicated.
Summary of the invention
The present invention is mainly to solve above-mentioned technical problem present in the prior art, provides a kind of room temperature and suspends by force slurry
Stability Determination device and method.The device and method normally sinks the upper volumetric taper two parts of slurry container point, slurries
Drop unaffected, and container gently revolves after slurries are stood to setting time by enabling valve up and down between two parts by being connected by order
After door closes upper and lower level container connection, upper and lower level container slurries is passed through into top/bottom part respectively, its weight of weighing is poured out, by upper
The of poor quality of lower layer's slurries can obtain slurries settleability.
Above-mentioned technical problem of the invention is mainly to be addressed by following technical proposals:
A kind of room temperature suspends by force slurry Stability Determination device, comprising: passes through attachment device connection and quality and volume phase
Same upper container and bottom container；A valve is provided in the attachment device.
Preferably, a kind of above-mentioned room temperature, which suspends by force, starches Stability Determination device, and the upper container and bottom container are logical
One is crossed by forming a hourglass shape after enabling connection.
Preferably, a kind of above-mentioned room temperature, which suspends by force, starches Stability Determination device, is provided on the upper container with micro-
That adjusts hole revolves the upper container top cover unloaded.
Preferably, a kind of above-mentioned room temperature, which suspends by force, starches Stability Determination device, is provided with and can revolve in the bottom container
The bottom container bottom cover unloaded.
A kind of room temperature suspends by force slurry 4stability determination, comprising:
Slip casting step, stirring make strong suspension slurry, and slurries are poured into and are connected in intact upper container and bottom container；
Precipitation step stands some time, and the valve closed in attachment device is to close sedimentation channel；
Weighing stage unscrews top cover and bottom cover respectively, and the slurries staticly settled in the container of top and the bottom are poured out and divide
Also known as measure its weight；
Measuring process, according to the stability of the judgement slurries of poor quality of upper and lower level slurries.
Common-used formula: strong suspension slurry stability=upper and lower level grind slurries quality difference/upper and lower level grind slurries quality and.
Preferably, a kind of above-mentioned room temperature, which suspends by force, starches 4stability determination, in the slip casting step, overflows to slurries
After fine tuning mouth at upper container top cover, excessive slurries at fine tuning mouth are struck off.
Preferably, a kind of above-mentioned room temperature, which suspends by force, starches 4stability determination, in the measuring process, upper and lower level slurries
5% less than upper and lower level grind slurries quality sum of poor quality is the satisfactory strong suspension slurry of stability.
Therefore, the present invention has the advantage that (1) had not only been able to achieve the abundant sedimentation of slurries, but also energy bottom line does not disturb
Slurries after sedimentation, precision are high；(2) the device economy and facilitate operation, can also be multiple customized in the case where sample matches more situation,
Realize it is multiple experiment and meanwhile carry out, can effectively shorten experimental period, control experimental expenses；(3) container is equipped with slurries and fills container
Fine tuning hole afterwards has prevented the human factor during the higher suspension slurry of viscosity strikes off in previous big open end container, has guaranteed
Measurement accuracy.
Detailed description of the invention
Fig. 1 is present slurry stability meter front plan view；
Fig. 2 is present slurry stability meter plan view from above.
In figure, 1. bottom containers, 2. bottom container bottom covers, 3. bottom container bottom covers and container screw connection screw thread, 4. by enabling,
5. by enabling valve, 6. upper containers, 7. upper container top covers, 8. upper container slurries fine tuning mouth, 9. upper container top covers and appearance
Device screw connection screw thread.
Specific embodiment
Below with reference to the embodiments and with reference to the accompanying drawing the technical solutions of the present invention will be further described.
Embodiment:
The cardinal principle of the present embodiment is: by the upper volumetric taper two parts of slurry container point, slurries are normally settled not
It is impacted, and gently revolved after slurries are stood to setting time by enabling valve close between two parts by being connected by order above and below container
After closing lower layers of containers connection, upper and lower level container slurries is passed through into top/bottom part respectively, its weight of weighing is poured out, pass through upper and lower level
The of poor quality of slurries can obtain slurries settleability, because upper and lower level container volume is equal, therefore quality can be equal to density and carry out meter
It calculates.
Because most geotechnical engineering slurries have larger solid phase particles (especially live loess pulping, lower grade powder
Coal ash even drift-sand pulping), water-retaining property strong (bleeding rate is low, and moisture content and solid phase particles disperse in slurries) the features such as, suspend steady
Qualitative is critically important one of the performance parameter of slurries, and fast and accurately test equipment and technique study are rather important.The present embodiment
Tester slurries or more interlayer quality difference measured by hourglass shape illustrate pulp stability.This method does not interfere to starch with device
Liquid settles delaminating process, and measurement process nor affects on the upper and lower level slurry after layering and suspends once again, equipment simple economy and is easy to grasp
Make, solves great number of issues existing in the prior art.
As shown in Figs. 1-2, it suspends by force for the room temperature of the present embodiment and starches stability meter.It is divided into two volume phases up and down
Deng part (upper container 1, bottom container 6), global shape be in hourglass shape, upper container 6 set one band finely tune revolving for hole 8 unload
Lid 7, which is installed by screw thread 9 and rotation is unloaded；The fine tuning hole 8 at 7 middle part of lid is that slurries fill the fine tuning hole after container,
Generally struck off by ruler, prevented in previous big open end container during the higher suspension slurry of viscosity strikes off it is artificial because
Element；Bottom container 1, which sets one and can revolve, unloads bottom 2, which is installed by screw thread 3 and rotation is unloaded；Top and the bottom container is by by enabling 4 connections；The connection
There is a valve 5, fully opened during test, test is completed late gate and closed.The general base diameter of the size of sandglass-shaped container
12cm, height 5cm.It should be noted that size herein only presently preferred embodiments of the present invention, is not intended to limit this hair
Bright protection scope.
After adopting the above structure, the measurement process and working principle of the present embodiment are that stirring first makes strong suspension slurry,
Slurries are poured into and are connected in intact bottom container 6 and upper container 1, overflow the fine tuning mouth at 6 top cover 7 of upper container to slurries
After 8, excessive slurries at fine tuning mouth 8 are struck off；The some time is stood, by enabling valve 5 close sedimentation channel in the middle part of rotation container；Later
Top cover 7 and bottom cover 2 are unscrewed respectively, and the slurries staticly settled in the container of top and the bottom are poured out and weigh its weight respectively；Meter
Count the stability of poor quality that can obtain slurries of lower layer's slurries in.
Specific embodiment described herein is only an example for the spirit of the invention.The neck of technology belonging to the present invention
The technical staff in domain can make various modifications or additions to the described embodiments or replace by a similar method
In generation, however, it does not deviate from the spirit of the invention or beyond the scope of the appended claims.
Claims (3)
- The slurry 4stability determination 1. a kind of room temperature suspends by force, which is characterized in that suspended by force based on room temperature and starch Stability Determination dress Set progress, the room temperature suspend by force slurry Stability Determination device include: by attachment device connection and quality it is identical with volume Upper container and bottom container；A valve is provided in the attachment device；The upper container and bottom container pass through one By forming a hourglass shape after enabling connection；It is provided on the upper container and revolves the upper container top unloaded with fine tuning hole (8) It covers (7)；The bottom container bottom cover (2) unloaded can be revolved by being provided in the bottom container；The step of measurement includes:Slip casting step, stirring make strong suspension slurry, and slurries are poured into and are connected in intact upper container and bottom container；Precipitation step stands some time, and the valve closed in attachment device is to close sedimentation channel；Weighing stage unscrews top cover and bottom cover respectively, and the slurries staticly settled in the container of top and the bottom are poured out and claim respectively Measure its weight；Measuring process, according to the stability of the judgement slurries of poor quality of upper and lower level slurries；Common-used formula: strong suspension slurry stability=upper and lower level grind slurries quality difference/upper and lower level grind slurries quality and.
- The slurry 4stability determination 2. a kind of room temperature according to claim 1 suspends by force, which is characterized in that the slip casting step In rapid, after the fine tuning mouth that slurries overflow at upper container top cover, excessive slurries at fine tuning mouth are struck off.
- The slurry 4stability determination 3. a kind of room temperature according to claim 1 suspends by force, which is characterized in that the measurement step In rapid, upper and lower level grind slurries quality difference is less than the 5% of upper and lower level grind slurries quality sum for the satisfactory strong suspension slurry of stability.
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| CN108872526A (en) * | 2018-06-25 | 2018-11-23 | 陕西延长石油（集团）有限责任公司 | A kind of rapid detection method of coal stability |
| CN110006778B (en) * | 2019-04-29 | 2021-11-26 | 大连海外华昇电子科技有限公司 | Method for detecting dispersibility of conductive paste for MLCC |
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