CN109633136A - A kind of cement slurry ratio of mud detector and its operating method - Google Patents
A kind of cement slurry ratio of mud detector and its operating method Download PDFInfo
- Publication number
- CN109633136A CN109633136A CN201910042420.9A CN201910042420A CN109633136A CN 109633136 A CN109633136 A CN 109633136A CN 201910042420 A CN201910042420 A CN 201910042420A CN 109633136 A CN109633136 A CN 109633136A
- Authority
- CN
- China
- Prior art keywords
- load cell
- cement slurry
- buoyancy
- connecting rod
- mud
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000004568 cement Substances 0.000 title claims abstract description 133
- 239000002002 slurry Substances 0.000 title claims abstract description 107
- 238000011017 operating method Methods 0.000 title claims abstract description 7
- 230000005484 gravity Effects 0.000 claims abstract description 71
- 238000012360 testing method Methods 0.000 claims abstract description 70
- 238000012545 processing Methods 0.000 claims abstract description 42
- 238000003825 pressing Methods 0.000 claims abstract description 39
- 239000007788 liquid Substances 0.000 claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 25
- 230000000694 effects Effects 0.000 claims description 18
- 238000007667 floating Methods 0.000 claims description 12
- 230000003068 static effect Effects 0.000 claims description 11
- 238000004590 computer program Methods 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 claims description 9
- 239000002184 metal Substances 0.000 claims description 8
- 239000011440 grout Substances 0.000 claims description 6
- 239000004973 liquid crystal related substance Substances 0.000 claims description 6
- 238000004458 analytical method Methods 0.000 claims description 4
- 238000009795 derivation Methods 0.000 claims description 3
- 238000007373 indentation Methods 0.000 claims description 3
- 230000006698 induction Effects 0.000 claims description 3
- 235000012149 noodles Nutrition 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 24
- 238000000034 method Methods 0.000 abstract description 19
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000003908 quality control method Methods 0.000 abstract description 3
- 238000013461 design Methods 0.000 description 11
- 238000004364 calculation method Methods 0.000 description 8
- 230000006399 behavior Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000012797 qualification Methods 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 244000097592 Ptelea trifoliata Species 0.000 description 1
- 235000010891 Ptelea trifoliata Nutrition 0.000 description 1
- 244000273618 Sphenoclea zeylanica Species 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 238000004422 calculation algorithm Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- VIKNJXKGJWUCNN-XGXHKTLJSA-N norethisterone Chemical compound O=C1CC[C@@H]2[C@H]3CC[C@](C)([C@](CC4)(O)C#C)[C@@H]4[C@@H]3CCC2=C1 VIKNJXKGJWUCNN-XGXHKTLJSA-N 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000007569 slipcasting Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/38—Concrete; Lime; Mortar; Gypsum; Bricks; Ceramics; Glass
- G01N33/383—Concrete or cement
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Medicinal Chemistry (AREA)
- Food Science & Technology (AREA)
- Ceramic Engineering (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
Abstract
The invention discloses a kind of cement slurry ratio of mud detector and its operating method, detector includes: load cell, connecting rod, force snesor, data processing chip, the first data line, the second data line and display screen.Method specifically: load cell is put into cement slurry by cement slurry buoyancy, load cell gravity, and buoyancy is equal to self gravity when stablizing；It is pressed with instrument host on load cell connecting rod top, when being pressed into liquid level and reaching test badge line, buoyancy is equal to the sum of self gravity and pressing force when stablizing；Pressing force is transferred to force snesor by connecting rod, and the pressure value of test is transmitted to data processing chip by the first data line by force snesor, calculates the buoyancy of load cell receiving and then calculates cement slurry specific gravity, finally according to rate of specific gravity calculates the ratio of mud.The present invention detects the cement slurry ratio of mud in all kinds of subdivisional work work progress using cement slurry construction technology at any time, controls construction quality, effectively solves the problems, such as that engineering construction quality controls.
Description
Technical field
The present invention relates to civil engineering construction technical field, especially a kind of cement slurry ratio of mud detector and its operation side
Method.
Background technique
Common deep layer agitation of cement method, jet grouting, pressure grout method, slip casting in civil engineering construction field
The construction technologies such as anchor pole, cast-in-situ bored pile grouting behind shaft or drift lining, generally use cement slurry and construct, and whether cement slurry quality meets design
It is required that being the key factor for controlling this kind of engineering construction quality.This kind of engineering belongs to concealed work, once implement to complete, it is difficult to
Carry out direct quality examination judge, it is common practice to extract certain proportion (2~5%) stake number carry out bearing capacity, intensity,
A few class quality and technical index tests such as integrality are judged this batch of stake number qualification if test passes, are taken if test failure
Technological means processing.If it is excessively high to extract ratio when test, increase engineering cost, therefore extraction ratio is generally lower, this just makes
Integrated engineering quality cannot be represented completely at test result, it occur frequently that test is judged to still occur in qualified pile group because of pile body
Intensity, Lack of support and cause the event of quality accident.And the reason of causing pile strength, Lack of support, is primarily due to
Cement consumption does not meet design requirement.
The above-mentioned all kinds of techniques constructed using cement slurry, design document are required to cement consumption and the ratio of mud according to design
Construction first calculates single pile project amount before construction, and cement needed for calculating single pile according to project amount, cement consumption, the ratio of mud
Slurry product, controls construction quality by way of controlling single pile grout volume.And when situ configuration cement slurry, it should also basis
The volume of cement slurry mixing plant calculates and weighs the water and cement of phase application amount, then mixing cement slurry.Such way was both
It is time-consuming and laborious and be easy to produce mistake, also it is unfavorable for supervising and controls, and has an opportunity to take advantage of to equal bad behaviors of using inferior materials and turning out substandard goods.By
In the reasons such as construction equipment disperses at the scene, personnel are lazy, use inferior materials and turn out substandard goods, tends to occur grout volume and meet the requirements, but water
Gray scale is unsatisfactory for, and cement consumption is caused to be unsatisfactory for design requirement, to cause phenomenon off quality.To prevent bad quality
Behavior occurs, and administrative staff increase selective examination frequency, often to certain pile driving construction overall process inspections, to measuring equipment, water consumption,
Cement consumption is checked, and the material of passed examination is completely used for the pile driving construction by all-the-way tracking supervision construction personnel.But
Since place limits, cement slurry needed for single pile configures several times, and the single pile construction time often continues 2 hours or more, in addition
The reasons such as round-the-clock job, these factors cause quality surveillance difficulty to increase, it is impossible to accomplish to all piles body construction all-the-way tracking
It checks, and frequently checks and delay construction speed.Many reasons often result in the position qualification spot-check, the portion not spot-check
The unqualified situation in position.
Currently, be cement slurry dosage and the ratio of mud for the key of all kinds of Engineering Quality Controls using cement slurry construction,
Cement slurry dosage can be effectively controlled by the flowmeter mechanically configured and single pile mechanical work time, and the ratio of mud passes through
Selective examination mode can not fully control, and scene can not also accomplish that whole check tracks, therefore can not prevent hidden danger of quality.
Summary of the invention
Technical problem to be solved by the present invention lies in, a kind of cement slurry ratio of mud detector and its operating method are provided,
Detector according to this method production is portable instrument, the used cement slurry ratio of mud can be detected at any time, for improving soil
All kinds of problems difficult using the pile quality control of cement slurry construction in wood engineering field are of great significance.
In order to solve the above technical problems, the present invention provides a kind of cement slurry ratio of mud detector, comprising: load cell, connecting rod,
Force snesor, data processing chip, the first data line, the second data line and display screen；Connecting rod is fixed on load cell top vertically,
Force snesor, data processing chip, the first data line, the second data line and display screen are placed in plastic shell jointly, and power passes
Sensor is set to lower part in shell, and force snesor pressure value is sent to data processing chip, the second data line by the first data line
The calculated result of data processing chip is sent to liquid crystal display.
Preferably, load cell is vacuum cavity thin-wall metal box, connecting rod is hollow thin-wall metallic rod, and load cell makes balling-up
Shape or flat spheroid-like, connecting rod be fixed on load cell top center vertically extend upwards, load cell lower central position
There is prominent sharp mouth to stretch out straight down.The shape and size of load cell and connecting rod reach oneself it is ensured that load cell is put into cement slurry
It is vertical state when right equilibrium state, and be placed in box body in pure water to be totally submerged；Test badge line is made in connecting rod lower end, is marked
Remember that the following total volume of line, load cell and connecting rod total weight are given value；Load cell and connecting rod are not connected to instrument host, are independent
In the attachment of host.
Preferably, force snesor is placed in lower part in shell, and stays aperture in outer casing underpart, and orifice size is greater than connecting rod section
Size, force snesor induction end are placed at aperture；First data line is used to force snesor pressure value be sent to data processing core
Piece；Computer program is set in data processing chip, and the pressure value received is scaled what load cell afforded first by program
Buoyancy value, then according to buoyancy value calculate cement slurry specific gravity, further according between cement slurry specific gravity and the ratio of mud relationship calculate
Ratio of mud value out；Data line is used to data processing chip calculated result be sent to liquid crystal display；Display screen is for showing
Show test result i.e. ratio of mud value.
Correspondingly, a kind of operating method of cement slurry ratio of mud detector, includes the following steps:
(1) load cell and connecting rod are placed in cement slurry to be measured, load cell and connecting rod will be suspended in cement pulp noodle, be reached
Connecting rod is in a vertical state when force balance state, has one section of gap between liquid level and test badge line at this time, at this time load cell
The buoyancy and self gravitation effect of cement slurry are afforded, equilibrium state is in, buoyancy is equal with gravity value；
(2) after testing force box reaches force balance state, it is directed at load cell connecting rod top with instrument host lower part aperture, and
Load cell is pressed straight down, until liquid level stops pressing, and remaining stationary state etc. when reaching the test badge line on connecting rod
Test result to be measured；Load cell bears buoyancy, self gravity and pressing force collective effect during pressing, original under pressing effect
Gap disappears between liquid level and test badge line, and load cell arranges liquid volume increase, increases so as to cause the buoyancy of receiving, stops
Load cell reaches force balance state when only pressing and is static, and buoyancy is equal to the sum of self gravity and pressing force, then force snesor
The pressure of receiving is the difference of the buoyancy that load cell affords and self gravity；
(3) force snesor receives the pressure of load cell receiving, and pressure is sent to data processing chip through the first data line,
Built-in chip type computer program, which is computed, show that calculated result is cement slurry ratio of mud value, and calculated result is transmitted through the second data line
To display screen；
(4) when screen to be shown shows test result ratio of mud value, instrument is tidied up, cleans and arrange, test terminates.
Preferably, in step (3), force snesor receives the pressure of load cell receiving, and pressure is transmitted through the first data line
To data processing chip, built-in chip type computer program, which is computed, show that calculated result is cement slurry ratio of mud value, calculated result
Display screen is sent to through the second data line to specifically comprise the following steps:
(31) the buoyancy value that load cell is born is calculated by the pressing force that force snesor is sent to data processing chip；Load cell
Force analysis: being placed on load cell in cement slurry first, and when reaching natural balanced state (static), load cell is floating in cement slurry
Reach force balance state under power and self gravity collective effect, buoyancy is equal to gravity at this time；When test, with sensing chip vertically to
Lower pressing load cell upper connecting rod top, until liquid level reaches the test badge line on connecting rod and is in load cell indentation cement slurry
Only, load cell reaches force balance state under buoyancy, pressing force and self gravity collective effect at this time, buoyancy value etc. when static
In the summation of gravity and pressing force value；Force snesor receives the pressure value on load cell, is sent to data through the first data line
Chip is handled, built-in chip type program calculates the buoyancy value of load cell according to following relationship；
If the power that force snesor receives is F, load cell and connecting rod gravity are given value G, then
FIt is floating=F+G ①
Wherein, FIt is floating, F, G unit be newton (N)；
(32) built-in chip type program calculates cement slurry specific gravity according to following relationship；
By the law of buoyancy FIt is floating=ρ gV is it is found that cement slurry mass density
Wherein, ρ unit is grams per milliliter (g/ml), and V unit is milliliter (ml), and g unit is that 0.0098 newton/gram (N/g) takes
The density p of waterWater=1 grams per milliliter (g/ml), then cement slurry specific gravity
Wherein, given value when load cell weight and volume is production instrument；
(33) built-in chip type program calculates the cement slurry ratio of mud according to following relationship；
Relation derivation between the ratio of mud and specific gravity:
If the ratio of mud (weight ratio) is n, taking the weight of cement is 1, then the weight of water is n；The mass density of water intaking is 1,
Cement quality density is 3.15 (constants), then corresponding grout volume is
Cement slurry mass density is
Cement slurry specific gravity is
The ratio of mud is
Since cement quality density changes between 3.1~3.2, then cement slurry specific gravity accordingly changes, amplitude of variation
Between ± 0.01, requirement of engineering is not influenced；Load cell and the following total volume V of connecting rod weight G (gram) and test badge line (milli
Rise) given when being instrumentation (being determined by test)；G is 0.0098 newton/gram (N/g)；The specific gravity of water is 1, mass density
For 1 grams per milliliter (g/ml)；Cement specific gravity is 3.15, and mass density is 3.15 grams per milliliters (g/ml)；
(34) ratio of mud value obtained is sent to by the second data line by display screen and shows test result.
The invention has the benefit that (1) proposes a kind of cement slurry ratio of mud detector design method based on buoyancy, press
The instrument that method is fabricated to like this can be used to test the cement slurry ratio of mud at any time；(2) work of the instrument for mixing cement slurry
Personnel can not be operated in such a way that tradition weighs, but stir while testing the ratio of mud when adding cement into water, directly
Stop adding cement when meeting to the ratio of mud, be controlled convenient for the ratio of mud of the staff to configuration cement slurry, to given water ash
The cement slurry production process of ratio has directive function；(3) instrument can spot-check cement slurry for construction manager at any time
Whether the ratio of mud meets design requirement, to handle bad quality behaviors in time, is used for construction site convenient for construction manager
Carry out the control of the cement slurry ratio of mud；(4) instrument can detect at any time using cement slurry for quality supervision and inspection personnel
All kinds of construction technology implementation processes in the cement slurry ratio of mud whether meet design requirement, convenient for being controlled to construction quality
System.
Detailed description of the invention
Fig. 1 is detector structural schematic diagram of the invention.
Fig. 2 is detector design method flow diagram of the invention.
Wherein, 1, shell；2, the first data line；3, the second data line；4, display screen；5, data processing chip；6, connecting rod；
7, load cell；8, force snesor；9, aperture；10, level indicia line.
Specific embodiment
As shown in Figure 1, a kind of cement slurry ratio of mud detector, comprising: load cell, connecting rod, force snesor, data processing core
Piece, the first data line, the second data line and display screen；Connecting rod is fixed on load cell top, force snesor, data processing core vertically
Piece, the first data line, the second data line and display screen are placed in plastic shell jointly, under force snesor is set in shell
Force snesor pressure value is sent to data processing chip by portion, the first data line, and the second data line is by the meter of data processing chip
It calculates result and is sent to liquid crystal display.
(1) load cell is vacuum cavity thin-wall metal box, connecting rod is hollow thin-wall metallic rod, and connecting rod is fixed on dynamometry vertically
Box top.Load cell is fabricated to spherical or flat spheroid-like, and connecting rod is fixed on load cell top center and stretches vertically upwards
Out, load cell lower central position has prominent sharp mouth to stretch out straight down.The shape and size of load cell and connecting rod are it is ensured that survey
Power box is put into cement slurry when reaching natural balanced state as vertical state, and is placed in box body in pure water and cannot be totally submerged；?
Test badge line is made in connecting rod lower end, and the following total volume of mark line, load cell and connecting rod total weight are given value；Load cell and connecting rod
It is not connected to instrument host, for the attachment independently of host.
(2) instrument host includes force snesor, data processing chip, the first data line, the second data line, display screen, is total to
With being placed in plastic shell, shell sizes are determined according to internal each arrangement of parts.Wherein force snesor is placed in lower part in shell,
And aperture is stayed in outer casing underpart, orifice size is greater than connecting rod sectional dimension, and force snesor induction end is placed at aperture；First data
Line is used to force snesor pressure value be sent to data processing chip；Computer program is set in data processing chip, and program is first
First the pressure value received be scaled buoyancy value that load cell affords, then according to buoyancy value calculate cement slurry specific gravity,
Ratio of mud value is calculated further according to the relationship between cement slurry specific gravity and the ratio of mud；Data line 2 is used for data processing core
Piece calculated result is sent to liquid crystal display；Display screen is for showing test result i.e. ratio of mud value.
Cement slurry ratio of mud tester working principle and explanation:
(1) explanation of tester working principle
The instrument is designed based on law of buoyancy.Firstly, the metal cavitg thin-walled load cell of one certain shape of design,
Hollow metallic rod is fixed on load cell, when load cell is placed in cement slurry, load cell and connecting rod static can be suspended in water
In mud, and keep metal link rod in a vertical state, load cell is under cement slurry buoyancy and self gravity collective effect at this time
Reach force balance state, then the buoyancy that load cell affords cement slurry is equal to the gravity of load cell；Secondly, instrument when test
At the top of the sensing part alignment load cell connecting rod of the force snesor of host lower part, and it is pressed into liquid level straight down and reaches test mark
Remember and stop pressing when line and remain stationary state, load cell is in cement slurry buoyancy, self gravity and pressing force collective effect at this time
Under reach force balance state, buoyancy value is equal to the sum of gravity and pressing force value, then the pressing force value of force snesor test is equal to
The difference of buoyancy and gravity；Thirdly, pressing force value is sent to data processing chip, built-in computer program through the first data line
Successively calculate load cell buoyancy, cement slurry specific gravity and the ratio of mud；Finally, calculated ratio of mud value is passed through the second data line
It send to liquid crystal display, shows test result.
(2) the production explanation of load cell and connecting rod
Load cell is able to maintain it is ensured that weight, volume stability, and when testing in being placed in cement slurry and is suspended in liquid table
Face, being fabricated to cavity thin-wall box is to ensure to suspend to reduce self weight, increase volume, is fabricated to spherical or elliptical metal structure
(spherical or elliposoidal stable structure, metal are hardly damaged) is the reasons such as to destroy, deform in order to prevent volume and weight is caused to be sent out
Changing；Hollow thin-wall metal link rod is fixed on load cell top vertically, is in order to which pressing force is transferred to force snesor vertically
On, it is ensured that test accuracy；Connecting rod is fabricated to hollow stem, is slanted when avoiding being placed in cement slurry to reduce weight, is used
Metal material is for Reducing distortion, ensures test accuracy；Load cell lower central position is in that sharp mouth shape is prominent downwards, is to use
It slants power in balance upper links；Load cell volume and gravity should meet when being placed in pure water, liquid level be located at test badge line with
Under, it is because load cell arranges liquid volume in pure water and is always less than the liquid bulk arranged in the cement slurry of any ratio of mud
(when load cell reaches natural balanced state in a liquid, buoyancy is equal to arranges liquid gravity to product, and pure water density is less than cement
Pulp density), thus can ensure that liquid level is respectively positioned on test badge line when load cell is in natural balanced state in any cement slurry
Below.In order to which instrument is light and handy, easy to carry, when production, ensures that the following total volume of test badge line is no more than 50 milliliters, load cell
And connecting rod total weight is no more than 30 grams, determines especially by test in the case where meeting above-mentioned condition, and be incorporated into meter as given parameters
It calculates in program.
(3) force snesor range explanation
The various cement slurry ratio of muds used in engineering are generally not more than 2.0, for safety, according to the ratio of mud 3.0
When the buoyancy value that is calculated as maximum range.
If Fig. 2 is the operating process of cement slurry ratio of mud tester, include the following steps:
(1) load cell and connecting rod are placed in cement slurry to be measured, load cell and connecting rod will be suspended in cement pulp noodle, be reached
Connecting rod is in a vertical state when force balance state, there is one section of gap between liquid level and test badge line at this time.Load cell at this time
The buoyancy and self gravitation effect of cement slurry are afforded, equilibrium state is in, buoyancy is equal with gravity value.
(2) after testing force box reaches force balance state, it is directed at load cell connecting rod top with instrument host lower part aperture, and
Load cell is pressed straight down, until liquid level stops pressing, and remaining stationary state etc. when reaching the test badge line on connecting rod
Test result to be measured.Load cell bears buoyancy, self gravity and pressing force collective effect during pressing, original under pressing effect
Gap disappears between liquid level and test badge line, and load cell arranges liquid volume increase, increases so as to cause the buoyancy of receiving, stops
Load cell reaches force balance state when only pressing and is static, and buoyancy is equal to the sum of self gravity and pressing force, then force snesor
The pressure of receiving is the difference of the buoyancy that load cell affords and self gravity.
(3) data processing and as the result is shown: force snesor receives the pressure of load cell receiving, and pressure is through the first data line
It is sent to data processing chip, built-in chip type computer program, which is computed, show that calculated result is cement slurry ratio of mud value, calculates
As a result display screen is sent to through the second data line.
(4) when screen to be shown shows test result ratio of mud value, instrument is tidied up, cleans and arrange, test terminates.
The algorithmic descriptions that data processing chip built-in computer program uses are as follows:
Constant involved in program has: load cell and the following total volume V (milliliter) of connecting rod weight G (gram) and test badge line
It gives and (is determined by test) when being instrumentation；G is 0.0098 newton/gram (N/g)；The specific gravity of water is 1, mass density 1
Grams per milliliter (g/ml)；Cement specific gravity is 3.15, and mass density is 3.15 grams per milliliters (g/ml).
The first step calculates the buoyancy value that load cell is born by the pressing force that force snesor is sent to data processing chip.It surveys
Power box force analysis: being placed on load cell in cement slurry first, and when reaching natural balanced state (static), load cell is in cement
Reach force balance state under slurry buoyancy and self gravity collective effect, buoyancy is equal to gravity at this time；It is perpendicular with sensing chip when test
It is straight to press down on load cell upper connecting rod top, until liquid level reaches the test badge on connecting rod in load cell indentation cement slurry
Until line, load cell reaches force balance state under buoyancy, pressing force and self gravity collective effect at this time, buoyancy when static
Value is equal to gravity and presses the summation of force value.Force snesor receives the pressure value on load cell, is sent to through the first data line
Data processing chip, built-in chip type program calculate the buoyancy value of load cell according to following relationship.
If the power that force snesor receives is F, load cell and connecting rod gravity are given value G, then
FIt is floating=F+G ①
Wherein, FIt is floating, F, G unit be newton (N).
Second step, built-in chip type program calculate cement slurry specific gravity according to following relationship.
By the law of buoyancy FIt is floating=ρ gV is it is found that cement slurry mass density
Wherein, ρ unit is grams per milliliter (g/ml), and V unit is milliliter (ml), and g unit is 0.0098 newton/gram (N/g)
The density p of water intakingWater=1 grams per milliliter (g/ml), then cement slurry specific gravity
Wherein, given value when load cell weight and volume is production instrument.
Third step, built-in chip type program calculate the cement slurry ratio of mud according to following relationship.
Relation derivation between the ratio of mud and specific gravity:
If the ratio of mud (weight ratio) is n, taking the weight of cement is 1, then the weight of water is n；The mass density of water intaking is 1,
Cement quality density is 3.15 (constants), then corresponding grout volume is
Cement slurry mass density is
Cement slurry specific gravity is
The ratio of mud is
Remarks: since cement quality density changes between 3.1~3.2, then cement slurry specific gravity accordingly changes, variation
Amplitude is not influence requirement of engineering between ± 0.01.
The ratio of mud value obtained is sent to display screen by the second data line and shows test result by the 4th step.
Illustrate the application of the instrument with specific example below.
The cement slurry for gray scale 0.50 of fetching water, the cement specific gravity used is 1 for the specific gravity of 3.15, water, test actual measurement cement slurry
Specific gravity is 1.82.The instrument load cell used and 20 grams of connecting rod total weight are set, it is total below test badge line on load cell connecting rod
50 milliliters of volume.
The first step is tested, load cell is placed in cement slurry first, force balance state is reached after static, at this time load cell
The buoyancy being subject to is equal to self gravity.
Second step, after the static stabilization of load cell, at the top of the sensing part alignment connecting rod of instrument host lower force sensor
And load cell is pressed down on, until cement slurry liquid level reaches the test badge line on connecting rod, it is remain stationary state, is surveyed at this time
Power box reaches equilibrium state under buoyancy, self gravity and pressing force collective effect, and buoyancy value is equal to gravity and presses force value
Summation.It presses force value and power inductor is transferred to by connecting rod, be then sent to data processing chip and calculated, calculated result passes
It send to display screen and shows test result.Data processing chip main processes of calculation is as follows:
The pressing force that force snesor bore and be sent to data processing chip is 0.6958 newton (N), remarks: due to not yet
Instrument is made, pressing force is theoretical analysis and calculation as a result, calculating as follows:
Pressing force is F=FIt is floating- G=(1.82 × 50-20) × 0.0098=0.6958 newton
Data processing chip is calculated the buoyancy of load cell receiving by calculation procedure, is calculated as follows:
FIt is floating=F+G=0.6958+20 × 0.0098+0.8918 newton
Calculation procedure calculates as follows according to the mass density of buoyancy calculations cement slurry:
By FIt is floating=ρ gV, it is known thatGrams per milliliter
Calculation procedure is according to mass density calculated specific gravity
Finally calculate the ratio of mud
Calculated result is transmitted to display screen by the second data line, final to show that test result is 0.51.
Third step cleans after showing test result and tidies up arrangement instrument, test terminates.
Illustrate following problems by present case:
(1) the case actual disposition ratio of mud 0.50, test result 0.51, deviation 0.01, the deviation meet engineering essence
Degree requires, and can be neglected.
(2) since the case is the calculation of first approximation, every step calculating reservation number of significant figures is less, and repeatedly calculating generates adds up
Error when actually preparing a computer program, can reduce error by way of increasing and retaining number of significant figures.
(3) buoyancy that load cell bears cement slurry is sent to data processing chip by force snesor, improves force snesor
Measuring accuracy can be improved in sensitivity.Force snesor belongs to mature product, and the force snesor that selection meets requirement of engineering precision is made
For the instrument component；Production, which meets the load cell that test needs, to be determined by test.
(4) the calculation procedure algorithm simple possible that data processing is related to selects suitable computer programming language establishment journey
Sequence, being placed in chip can be realized.
(5) by present case illustrate, according to based on buoyancy the cement slurry ratio of mud detector design method production instrument,
It can be used for accurately detecting the cement slurry ratio of mud.
Claims (5)
1. a kind of cement slurry ratio of mud detector characterized by comprising load cell, connecting rod, force snesor, data processing core
Piece, the first data line, the second data line and display screen；Connecting rod is fixed on load cell top, force snesor, data processing core vertically
Piece, the first data line, the second data line and display screen are placed in plastic shell jointly, under force snesor is set in shell
Force snesor pressure value is sent to data processing chip by portion, the first data line, and the second data line is by the meter of data processing chip
It calculates result and is sent to liquid crystal display.
2. cement slurry ratio of mud detector as described in claim 1, which is characterized in that load cell is vacuum cavity thin-wall metal
Box, connecting rod are hollow thin-wall metallic rod, and load cell is fabricated to spherical or flat spheroid-like, and connecting rod is fixed in load cell top
Heart position vertically extends upwards, load cell lower central position has prominent sharp mouth to stretch out straight down.
3. cement slurry ratio of mud detector as described in claim 1, which is characterized in that force snesor is placed in lower part in shell,
And aperture is stayed in outer casing underpart, orifice size is greater than connecting rod sectional dimension, and force snesor induction end is placed at aperture.
4. a kind of operating method of cement slurry ratio of mud detector, which comprises the steps of:
(1) load cell and connecting rod are placed in cement slurry to be measured, load cell and connecting rod will be suspended in cement pulp noodle, reach stress
Connecting rod is in a vertical state when equilibrium state, there is one section of gap between liquid level and test badge line at this time, and load cell is born at this time
To the buoyancy and self gravitation effect of cement slurry, it is in equilibrium state, buoyancy is equal with gravity value；
(2) after testing force box reaches force balance state, it is directed at load cell connecting rod top with instrument host lower part aperture, and vertical
Load cell is pressed down on, stops pressing, and remaining stationary state etc. when liquid level reaches the test badge line on connecting rod to be measured
Test result；Load cell bears buoyancy, self gravity and pressing force collective effect during pressing, the original liquid level under pressing effect
Gap disappears between test badge line, and load cell arranges liquid volume increase, increases so as to cause the buoyancy of receiving, stops pressing
Load cell reaches force balance state when pressing and is static, and buoyancy is equal to the sum of self gravity and pressing force, then force snesor is born
Pressure be the buoyancy that load cell affords and self gravity difference；
(3) force snesor receives the pressure of load cell receiving, and pressure is sent to data processing chip, chip through the first data line
Built-in computer program, which is computed, show that calculated result is cement slurry ratio of mud value, and calculated result is sent to aobvious through the second data line
Display screen；
(4) when screen to be shown shows test result ratio of mud value, instrument is tidied up, cleans and arrange, test terminates.
5. the operating method of cement slurry ratio of mud detector as claimed in claim 4, which is characterized in that in step (3), power is passed
Sensor receives the pressure of load cell receiving, and pressure is sent to data processing chip, built-in chip type computer through the first data line
Program, which is computed, show that calculated result is cement slurry ratio of mud value, and calculated result is sent to display screen through the second data line and specifically wraps
Include following steps:
(31) the buoyancy value that load cell is born is calculated by the pressing force that force snesor is sent to data processing chip；Load cell stress
Analysis: being placed on load cell in cement slurry first, and when reaching natural balanced state, load cell is in cement slurry buoyancy and itself weight
Reach force balance state under power collective effect, buoyancy is equal to gravity at this time；When test, dynamometry is pressed straight down with sensing chip
Box upper connecting rod top, until in load cell indentation cement slurry, until liquid level reaches the test badge line on connecting rod, dynamometry at this time
Box reaches force balance state under buoyancy, pressing force and self gravity collective effect, and buoyancy value is equal to gravity and presses when static
The summation of pressure value；Force snesor receives the pressure value on load cell, is sent to data processing chip, core through the first data line
Piece plug-in calculates the buoyancy value of load cell according to following relationship；
If the power that force snesor receives is F, load cell and connecting rod gravity are given value G, then
FIt is floating=F+G is 1.
Wherein, FIt is floating, F, G unit be newton；
(32) built-in chip type program calculates cement slurry specific gravity according to following relationship；
By the law of buoyancy FIt is floating=ρ gV is it is found that cement slurry mass density
Wherein, ρ unit be grams per milliliter, V unit be milliliter, g unit be 0.0098 newton/gram；
The density p of water intakingWater=1 grams per milliliter, then cement slurry specific gravity
Wherein, given value when load cell weight and volume is production instrument；
(33) built-in chip type program calculates the cement slurry ratio of mud according to following relationship；
Relation derivation between the ratio of mud and specific gravity:
If the ratio of mud is n, taking the weight of cement is 1, then the weight of water is n；The mass density of water intaking is 1, cement quality density
It is 3.15, then corresponding grout volume is
Cement slurry mass density is
Cement slurry specific gravity is
The ratio of mud is
Since cement quality density changes between 3.1~3.2, then cement slurry specific gravity accordingly changes, amplitude of variation be ±
Between 0.01, requirement of engineering is not influenced；Load cell and the following total volume V of connecting rod weight G and test badge line are instrumentation
When it is given；G be 0.0098 newton/gram；The specific gravity of water is 1, and mass density is 1 grams per milliliter；Cement specific gravity is 3.15, and quality is close
Degree is 3.15 grams per milliliters；
(34) ratio of mud value obtained is sent to by the second data line by display screen and shows test result.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910042420.9A CN109633136A (en) | 2019-01-17 | 2019-01-17 | A kind of cement slurry ratio of mud detector and its operating method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910042420.9A CN109633136A (en) | 2019-01-17 | 2019-01-17 | A kind of cement slurry ratio of mud detector and its operating method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109633136A true CN109633136A (en) | 2019-04-16 |
Family
ID=66061035
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910042420.9A Pending CN109633136A (en) | 2019-01-17 | 2019-01-17 | A kind of cement slurry ratio of mud detector and its operating method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109633136A (en) |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4654802A (en) * | 1984-06-07 | 1987-03-31 | Halliburton Company | Cement metering system |
| JPH1183718A (en) * | 1997-09-09 | 1999-03-26 | Taisei Corp | Method for measuring density of inorganic hydraulic substance and method for measuring unit water content of inorganic hydraulic kneaded matter |
| CN2394201Y (en) * | 1999-09-29 | 2000-08-30 | 李未显 | Intellectual automatic recorder for grouting |
| CN102590486A (en) * | 2012-03-20 | 2012-07-18 | 天津电力工程监理有限公司 | Cement paste water cement ratio meter and use method thereof |
| CN102621291A (en) * | 2012-03-30 | 2012-08-01 | 天津市水利科学研究院 | Freshly mixed concrete comprehensive determinator and manufacturing method and determining method thereof |
| CN202583182U (en) * | 2012-03-20 | 2012-12-05 | 天津电力工程监理有限公司 | Grout water-cement ratio meter |
| CN104655524A (en) * | 2015-02-28 | 2015-05-27 | 徐文政 | Electronic liquid densimeter |
| CN104807720A (en) * | 2015-05-20 | 2015-07-29 | 闫语童 | Method for measuring object density based on air pressure process |
| CN204831959U (en) * | 2015-08-14 | 2015-12-02 | 马振 | Novel grout ratio of mud detects meter |
| CN105113499A (en) * | 2015-10-23 | 2015-12-02 | 河海大学 | Test system and method for detecting cement content of pile body of cement stirring pile in real time |
| CN204855300U (en) * | 2015-06-12 | 2015-12-09 | 蒋小春 | Online grout liquor ratio restatement |
| CN206411114U (en) * | 2016-08-25 | 2017-08-15 | 六盘水师范学院 | A kind of device for determining the cement paste ratio of mud |
| CN107247008A (en) * | 2017-05-16 | 2017-10-13 | 大连理工大学 | A kind of device for measuring mud density |
| CN206876703U (en) * | 2017-05-09 | 2018-01-12 | 湖北省公信检测服务有限公司 | A kind of cement mortar ratio of mud detection means |
-
2019
- 2019-01-17 CN CN201910042420.9A patent/CN109633136A/en active Pending
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4654802A (en) * | 1984-06-07 | 1987-03-31 | Halliburton Company | Cement metering system |
| JPH1183718A (en) * | 1997-09-09 | 1999-03-26 | Taisei Corp | Method for measuring density of inorganic hydraulic substance and method for measuring unit water content of inorganic hydraulic kneaded matter |
| CN2394201Y (en) * | 1999-09-29 | 2000-08-30 | 李未显 | Intellectual automatic recorder for grouting |
| CN102590486A (en) * | 2012-03-20 | 2012-07-18 | 天津电力工程监理有限公司 | Cement paste water cement ratio meter and use method thereof |
| CN202583182U (en) * | 2012-03-20 | 2012-12-05 | 天津电力工程监理有限公司 | Grout water-cement ratio meter |
| CN102621291A (en) * | 2012-03-30 | 2012-08-01 | 天津市水利科学研究院 | Freshly mixed concrete comprehensive determinator and manufacturing method and determining method thereof |
| CN104655524A (en) * | 2015-02-28 | 2015-05-27 | 徐文政 | Electronic liquid densimeter |
| CN104807720A (en) * | 2015-05-20 | 2015-07-29 | 闫语童 | Method for measuring object density based on air pressure process |
| CN204855300U (en) * | 2015-06-12 | 2015-12-09 | 蒋小春 | Online grout liquor ratio restatement |
| CN204831959U (en) * | 2015-08-14 | 2015-12-02 | 马振 | Novel grout ratio of mud detects meter |
| CN105113499A (en) * | 2015-10-23 | 2015-12-02 | 河海大学 | Test system and method for detecting cement content of pile body of cement stirring pile in real time |
| CN206411114U (en) * | 2016-08-25 | 2017-08-15 | 六盘水师范学院 | A kind of device for determining the cement paste ratio of mud |
| CN206876703U (en) * | 2017-05-09 | 2018-01-12 | 湖北省公信检测服务有限公司 | A kind of cement mortar ratio of mud detection means |
| CN107247008A (en) * | 2017-05-16 | 2017-10-13 | 大连理工大学 | A kind of device for measuring mud density |
Non-Patent Citations (4)
| Title |
|---|
| 于树春等: "《煤层底板含水层大面积注浆改造技术》", 31 July 2014 * |
| 克里斯托弗.G普利博士: "《物理其实很简单》", 31 January 2014 * |
| 彭环云: "灌浆自动检测与记录关键技术的研究", 《中国优秀博硕士学位论文全文数据库 (博士) 工程科技Ⅱ辑》 * |
| 李相方: "浮子式泥浆密度传感器设计研究", 《石油钻采工艺》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10119240B2 (en) | Test system and test method for detecting cement content of cement mixing pile body in real time | |
| CN105862937B (en) | One kind pressure, pull out comprehensive laboratory experiment stake bath scaled model experimental device | |
| CN104596841B (en) | A kind of processing method for the collection image for visualizing triaxial pressure cell structure | |
| CN104280096A (en) | Self-floating water level tester | |
| Gomez et al. | Industrial testing of a gas holdup sensor for flotation systems | |
| CN108318382A (en) | Offshore anti-liquefying ability in-situ measuring method | |
| CN110470593A (en) | For quickly measuring the experimental rig and method of structural plane model material friction coefficient | |
| CN104181002A (en) | Uniform water pressure simulation loading device and method for tunnel structure model test | |
| CN203732397U (en) | Rapid emulsion explosive density detector | |
| CN101871344A (en) | Weighing method for determining liquid level in wellbore of gas well | |
| CN109633136A (en) | A kind of cement slurry ratio of mud detector and its operating method | |
| CN101377079A (en) | Method for measuring foundation bed coefficient indoor | |
| CN105699210A (en) | Dynamic powder flowing behavior analyzer | |
| CN105758559B (en) | A kind of shear stress test device and method | |
| CN102564862B (en) | Method for testing rigidity of chip | |
| CN105424485B (en) | Concrete filled steel tube bow member perfusion pilot system and test method | |
| CN107063180A (en) | Portable Geotechnical Engineering dual-axis inclinometer | |
| Berry et al. | Investigation of the effect of test procedure factors on the failure loci and derived failure functions obtained from annular shear cells | |
| CN105973793A (en) | Downhole stress corrosion testing method and device | |
| CN105974085A (en) | Portable and intelligent rapid gas content tester | |
| CN105606448A (en) | Determination method for fracture toughness of actual cracked structure | |
| CN109932279B (en) | Device and method for measuring liquid density by using volume strain | |
| CN106812163A (en) | The dynamic detection method of foundation pile structure level bearing capacity waterborne | |
| CN203132680U (en) | Digital indication scale calibrating device | |
| CN210514293U (en) | Automatic coal seam gas content measuring device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190416 |
|
| RJ01 | Rejection of invention patent application after publication |