CN109211643A - The pilot system and its method of cementing malm are prepared based on repeated precipitation - Google Patents
The pilot system and its method of cementing malm are prepared based on repeated precipitation Download PDFInfo
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- CN109211643A CN109211643A CN201811371098.6A CN201811371098A CN109211643A CN 109211643 A CN109211643 A CN 109211643A CN 201811371098 A CN201811371098 A CN 201811371098A CN 109211643 A CN109211643 A CN 109211643A
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- water
- linker
- solution
- malm
- reaction kettle
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- 238000001556 precipitation Methods 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 99
- 239000007788 liquid Substances 0.000 claims abstract description 42
- 238000006243 chemical reaction Methods 0.000 claims abstract description 41
- 238000002360 preparation method Methods 0.000 claims abstract description 41
- 230000002572 peristaltic effect Effects 0.000 claims abstract description 17
- 230000001105 regulatory effect Effects 0.000 claims abstract description 17
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 52
- 239000000243 solution Substances 0.000 claims description 52
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 20
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 19
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 claims description 14
- 238000002347 injection Methods 0.000 claims description 11
- 239000007924 injection Substances 0.000 claims description 11
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 10
- 239000001569 carbon dioxide Substances 0.000 claims description 10
- 206010022000 influenza Diseases 0.000 claims description 8
- 229910001629 magnesium chloride Inorganic materials 0.000 claims description 7
- 229910021532 Calcite Inorganic materials 0.000 claims description 6
- 239000000843 powder Substances 0.000 claims description 6
- 230000001276 controlling effect Effects 0.000 claims description 5
- 239000012530 fluid Substances 0.000 claims description 4
- 230000001376 precipitating effect Effects 0.000 claims description 4
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 3
- 239000008367 deionised water Substances 0.000 claims description 3
- 229910021641 deionized water Inorganic materials 0.000 claims description 3
- 229910001425 magnesium ion Inorganic materials 0.000 claims description 3
- 230000006911 nucleation Effects 0.000 claims description 3
- 238000010899 nucleation Methods 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 230000009471 action Effects 0.000 claims description 2
- 230000008859 change Effects 0.000 claims description 2
- 238000012544 monitoring process Methods 0.000 claims description 2
- 239000011148 porous material Substances 0.000 claims description 2
- 238000003756 stirring Methods 0.000 claims description 2
- 238000010998 test method Methods 0.000 claims description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims 1
- 241000790917 Dioxys <bee> Species 0.000 claims 1
- 229910052799 carbon Inorganic materials 0.000 claims 1
- 239000000203 mixture Substances 0.000 abstract description 9
- 239000002245 particle Substances 0.000 abstract description 8
- 238000012360 testing method Methods 0.000 abstract description 7
- 239000004568 cement Substances 0.000 abstract description 5
- 238000007596 consolidation process Methods 0.000 abstract description 5
- 239000004615 ingredient Substances 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 5
- 239000011800 void material Substances 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 5
- 239000011707 mineral Substances 0.000 description 5
- 239000004576 sand Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- GCNLQHANGFOQKY-UHFFFAOYSA-N [C+4].[O-2].[O-2].[Ti+4] Chemical compound [C+4].[O-2].[O-2].[Ti+4] GCNLQHANGFOQKY-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 239000011083 cement mortar Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Abstract
The invention discloses a kind of pilot systems and its method that cementing malm is prepared based on repeated precipitation, are related to ground applied chemistry technology.This system includes dioxide bottle (1), reaction kettle (2), filter (3), linker (4), Water level controller (5), water-level gauge (6), regulating valve (7), micro air pump (8), PH monitor (9), PH meter (10), peristaltic pump (11), sample preparation device (12), thermostatic water bath (13), temperature controller (14), temperature sensor (15), flue (16) and liquid line (17).The present invention simulates the natural physical condition in the bonding process of shallow-layer ocean, using continuous flowing, the method of repeated precipitation obtains degree of consolidation uniformly cementing malm, it can get the cementing sample of different types of structure and ingredient by changing malm particle composition, initial void ratio and cement content, provide sample for the analysis test of extensive unitary variant and guarantee.
Description
Technical field
The present invention relates to ground applied chemistry technology more particularly to a kind of cementing malm is prepared based on repeated precipitation
Pilot system and its method.
Background technique
Under natural environment, seawater continuously or periodically infiltrates intertidalite, and mineral are precipitated in deposit, sinks
Shallow lake mineral continuously or non-continuously generate in sand, particle voids can be filled, and generate cementation.
The method for manually preparing cementing sand need to meet easy to operate, specimen size and meet During Geotechnical Tests size of sample, examination
Sample degree of consolidation is uniformly equal to be required.Since the solubility of calcium carbonate in water is lower, oversaturated calcium carbonate soln need to continue not
Deposit is flowed through disconnectedly, and ability winnofil mineral make malm form certain degree of cementation and lithification degree.Therefore,
It is cementing similar under natural conditions, calcium carbonate need to be brought into deposit using the solution of flowing, be deposited in particle surface, keep away
Exempt from cement spontaneous nucleation in solution stand.This continuous flowing, the cementing mistake in method analog shallow-layer ocean of repeated precipitation
Natural physical condition in journey.In sample preparation, it can be obtained by changing malm particle composition, initial void ratio and cement content
The cementing sample of different types of structure and ingredient is obtained, test can be analyzed for extensive unitary variant, sample guarantee is provided.
Summary of the invention
The purpose of the present invention is to provide a kind of pilot system and its sides that cementing malm is prepared based on repeated precipitation
Method specifically simulates the natural physical condition in the bonding process of shallow-layer ocean, using the method for continuous flowing and repeated precipitation
Obtain degree of consolidation uniformly cementing malm.
The object of the present invention is achieved like this:
One, the pilot system (abbreviation system) of cementing malm is prepared based on repeated precipitation
This system includes dioxide bottle, reaction kettle, filter, linker, Water level controller, water-level gauge, regulating valve, miniature
Air pump, PH monitor, PH meter, peristaltic pump, sample preparation device, thermostatic water bath, temperature controller, temperature sensor, flue and liquid line；
Its position and connection relationship are:
On horizontal operation face, from left to right, dioxide bottle and reaction kettle pass through connection composition gas circuit before and after flue；Instead
Kettle, filter, linker, peristaltic pump and sample preparation device is answered to be sequentially connected composition fluid path by liquid line；
Water-level gauge is put into the bottom of linker left-hand container, and regulating valve is placed on the liquid line between reaction kettle and filter；Water
Position controller is connect with regulating valve and water-level gauge respectively；
Two flues of micro air pump are respectively protruding into the bottom of linker two sides container；
PH monitor is connect with PH meter and micro air pump respectively, obtains the pH value of solution in linker in real time, and micro- by controlling
The work of type air pump adjusts the air content being pumped into linker, adjusts the pH value of solution；
Peristaltic pump is separately connected (control) three solution flow pipes, the order of connection of each pipeline according to liquid communication direction into
Row, be respectively as follows: linker to sample preparation device lower inlet flow pipe, the liquid injection port of the upper liquid outlet of sample preparation device to reaction kettle
Flow pipe, the flow pipe of the inlet valve of thermostatic water bath to sample preparation device；
A water-level gauge, a PH meter and two flues are placed in linker；
The sample preparation device includes subjects --- malm；It is logical to be provided with upper cover plate, lower cover plate, collection channel, fluid injection
Road, upper liquid outlet, lower inlet, screw rod, inner tube wall, outer tube wall, water, flowing water Valve, inlet valve；Its position and connection relationship
Be: upper cover plate, lower cover plate, inner tube wall, outer tube wall constitute a cylinder-shaped entirety by screw rod, inside fill up malm；?
It is provided with collection channel, upper liquid outlet and its flowing water Valve on upper cover plate, lower inlet and its water inlet are provided on lower cover plate
Valve and reservoir channel；Water is filled between inner tube wall and outer tube wall；
Inlet valve and flowing water Valve are opened, so that water and thermostatic water bath is kept circulation by liquid line, is set on outer tube wall
It is equipped with temperature sensor, measures the temperature of water, and temperature is transmitted to temperature controller.
Two, the test method (abbreviation method) of cementing malm is prepared based on repeated precipitation
This method includes the following steps:
1. injecting a certain amount of deionized water, pure calcium carbonate (CaCO in a kettle3) powder and minimal amount of magnesium chloride
(MgCl) solid powder starts blender, solution is sufficiently stirred, obtains the calcium carbonate soln of saturation, controls the addition of magnesium chloride
Amount, makes magnesium ion (Mg in solution2+) mass fraction within hundred a ten thousandths；
2. it is in running order to be kept stirring device, air valve is opened, carbon dioxide (CO is made2) gas by air inlet enters reaction kettle
In, controlling the air pressure in reaction kettle is 100kPa, and the solubility of calcium carbonate increases with the increase that carbon dioxide divides in reaction kettle
Add, and reaches hypersaturated state, meanwhile, the pH value of solution reduces；
3. oversaturated calcium carbonate soln flows through filter, the nucleus in solution is filtered out, it is rear to flow into linker；
4. Water level controller passes through SEA LEVEL VARIATION in water-level gauge real-time monitoring linker；Meanwhile Water level controller and regulating valve phase
Even, the rate that solution is flowed out from reaction kettle is adjusted, stable level in linker is kept；
5. PH monitor is connect with PH meter and micro air pump respectively, the pH value of solution in linker is obtained in real time, and passes through control
The work of micro air pump adjusts the air content being pumped into linker, adjusts the pH value of solution；
6. being pumped into air into linker by micro air pump, the carbon dioxide in solution is removed, the mistake of nonequilibrium condition is obtained
The pH value of unsaturated carbonate calcium solution, solution increases, and the pump gas velocity rate of micro air pump is controlled by PH monitor, keeps solution pH value
For 7.3-7.4；
7. calcium carbonate soln oversaturated in linker is slow transitted through in lower inlet injection injection sample preparation device using peristaltic pump,
Calcium carbonate (CaCO in solution3) flowed into malm with solution, it is precipitated when encountering suitable nucleation site (sand particle),
The calcium carbonate of precipitating exists in the form of aragonite and calcite；
8. the precipitating due to calcite takes more time, after solution flows out malm, still in nonequilibrium condition, solution will
It is pumped in reaction kettle and is stirred again by peristaltic pump, supersaturated calcium carbonate soln is made；
9. sample preparation process loops back and forth like this, the intergranular pore in malm is made to obtain the consolidated fill of precipitation of calcium carbonate, it should
Sample making course also simulates the cementation of malm under tidal action, after sample preparation, removes solution sample preparation device, obtains cylinder
The cementing malm of body；
Consider the material consumption in the sample preparation period in reaction kettle, it is spare as replacing that a reaction kettle can be increased.
The present invention has following advantages and good effect:
1. oversaturated calcium carbonate soln continuously flows, the method for repeated precipitation simulates the nature in the bonding process of shallow-layer ocean
Physical condition can get cementing uniform cementing malm sample；
2. the addition of magnesium ion can delay and calcite is inhibited to precipitate in solution, the development of calcite mineral heterogeneity is hindered；
3. being respectively arranged with collection channel and reservoir channel in the upper cover plate and lower cover plate of sample preparation device, supersaturated calcium carbonate can be increased
Contact channel of the solution with malm, convenient for calcium carbonate mineral, homogeneous precipitation is precipitated in malm；
4. in sample preparation, can get different structure class by changing malm particle composition, initial void ratio and cement content
The cementing sample of type and ingredient provides sample for the analysis test of extensive unitary variant and guarantees；
5. directly obtaining the cementing malm sample of different size by the size design for changing sample preparation device；
6. Water level controller can obtain in real time the water level in linker by water-level gauge, and by controlling to adjust valve, keep connection
Stable level in device；
7. PH monitor counts the pH value for obtaining solution in linker in real time by PH, meanwhile, PH monitor is connect with micro air pump,
Micro air pump work is controlled, the air content for being pumped into linker by controlling micro air pump adjusts the pH value of solution in linker；
8. temperature controller obtains the temperature value of water in sample preparation device by temperature sensor in real time, meanwhile, temperature controller and thermostatic water bath phase
Connect, the temperature of recirculated water in real-time regulating thermostatic sink；
9. each functional component part uniform specification in the system, assembly and connection is easy, it can be achieved that industry replicates, and the chemistry in operation tries
Agent is general chemical analysis reagent, is conveniently easy to get.
In short, the present invention simulates the natural physical condition in the bonding process of shallow-layer ocean, using continuous flowing, repeated precipitation
Method obtain the uniform cementing malm of degree of consolidation, pass through and change malm particle composition, initial void ratio and glue
Tying object content can get the cementing sample of different types of structure and ingredient, provides sample for the analysis test of extensive unitary variant and protects
Card.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of this system；
Fig. 2 is the structural schematic diagram (cutting) of sample preparation device.
In figure:
1-dioxide bottle,
1-1-air valve；
2-reaction kettles,
2-1-blender, 2-2-air inlet, 2-3-liquid injection port；
3-filters；
4-linkers；
5-Water level controllers；
6-water-level gauges；
7-regulating valves；
8-micro air pumps；
9-PH monitors；
10-PH meter；
10-1-rock sample, 10-2-structural plane, 10-3-cement mortar, 10-4-shearing seam；
11-peristaltic pumps；
12-sample preparation devices,
12-1-malm, 12-2-upper cover plate, 12-3-lower cover plate, 12-4-collection channel,
The lower inlet of 12-5-reservoir channel, 12-6-upper liquid outlet, 12-7-, 12-8-screw rod,
12-9-inner tube wall, 12-10-outer tube wall, 12-11-water, 12-12-flowing water Valve,
12-13-inlet valve；
13-thermostatic water baths；
14-temperature controllers；
15-temperature sensors；
16-flues；
17-liquid lines.
Specific embodiment
It is described in detail with reference to the accompanying drawings and examples:
One, system
1, overall
Such as Fig. 1,2, this system includes dioxide bottle 1, reaction kettle 2, filter 3, linker 4, Water level controller 5, water level
Meter 6, regulating valve 7, micro air pump 8, PH monitor 9, PH meter 10, peristaltic pump 11, sample preparation device 12, thermostatic water bath 13, temperature controller 14,
Temperature sensor 15, flue 16 and liquid line 17；
Its position and connection relationship are:
On horizontal operation face, from left to right, dioxide bottle 1 and reaction kettle 2 pass through connection composition gas before and after flue 16
Road；Reaction kettle 2, filter 3, linker 4, peristaltic pump 11 and sample preparation device 12 are sequentially connected composition fluid path by liquid line 17；
Water-level gauge 6 is put into the bottom of 4 left-hand container of linker, and regulating valve 7 is placed in the liquid line between reaction kettle 2 and filter 3
On 17；Water level controller 5 is connect with regulating valve 7 and water-level gauge 6 respectively；
Two flues 16 of micro air pump 8 are respectively protruding into the bottom of 4 two sides container of linker；
PH monitor 9 is connect with PH meter 10 and micro air pump 8 respectively, obtains the pH value of solution in linker 4 in real time, and passes through control
The work of micro air pump 8 processed adjusts the air content being pumped into linker 4, adjusts the pH value of solution；
Peristaltic pump 11 is separately connected (control) three solution flow pipes, the order of connection of each pipeline according to liquid communication direction into
Row, be respectively as follows: linker 4 to sample preparation device 12 lower inlet 12-7 flow pipe, the upper liquid outlet 12-6 of sample preparation device 12 is extremely
The flow pipe of the liquid injection port 2-3 of reaction kettle 2, the flow pipe of the inlet valve 12-13 of thermostatic water bath 13 to sample preparation device 12；
6, PH meters 10 of a water-level gauge and two flues 16 are placed in linker 4；
Inlet valve 12-13 and flowing water Valve 12-12 is opened, makes water 12-11 keep following with thermostatic water bath 13 by liquid line 17
Circulation is logical, and temperature sensor 15 is provided on outer tube wall 12-10, measures the temperature of water 12-11, and temperature is transmitted to temperature control
Instrument 14.
2, functional component
01) dioxide bottle 1
Dioxide bottle 1 is standard carbon dioxide cylinder；
It is new bottle in air pressure in 2MPa or more, can be that provide continual and steady air pressure be 100kPa to reaction kettle 2 in system work
Carbon dioxide gas is provided with air valve 1-1 at the top of dioxide bottle 1, can control the flow velocity of outflow carbon dioxide, titanium dioxide
Carbon gas cylinder 1 is connect with reaction kettle 2 by flue 16.
02) reaction kettle 2
Reaction kettle 2 is a kind of standard reaction device；
The top of reaction kettle 2 is provided with blender 2-1, air inlet 2-2 and liquid injection port 2-3；One is injected in the lower part of reaction kettle 2
Quantitative deionized water and pure calcium carbonate (CaCO3) powder and minimal amount of magnesium chloride (MgCl) solid powder；In reaction kettle 2
Top is passed through the carbon dioxide gas of 100kPa, starts blender 2-1, solution is sufficiently stirred, it is molten to obtain oversaturated calcium carbonate
Liquid.
03) filter 3
Filter 3 is a kind of chemical analysis instrument；
The calcium carbonate nucleus that 10 μm of orders of magnitude can be filtered out, avoids calcium carbonate premature precipitation.
04) linker 4
Linker 4 is made of two graduated cylinders in left and right；
A water-level gauge 6, a PH meter 10, two flues 16 are placed in linker 4.
05) Water level controller 5
Water level controller 5 is a kind of electronic type high-low water level controller of standard；
Water level controller 5 is connect with water-level gauge 6 and regulating valve 7 respectively, and Water level controller 5 can be connected in real time by water-level gauge 6
Water level in logical device 4, and valve 7 is controlled to adjust, adjust the solution flow velocity in injection linker 4.
06) water-level gauge 6
Water-level gauge 6 is a kind of normal pressure type water-level gauge；
Can water level in real-time measurement linker 4, and send data to Water level controller 5.
07) regulating valve 7
Regulating valve 7 is a kind of standard signal control valve；
It is mounted on the liquid line 17 between reaction kettle 2 and filter 3, regulating valve 7 is controlled by Water level controller 5, adjusts liquid
The flow velocity of solution in pipe 17.
08) micro air pump 8
Micro air pump 8 is a kind of commercially available Miniature inflating pump；
It is communicated with the atmosphere, can be pumped air into two containers of 4 left and right sides of linker by flue 16.
09) PH monitor 9
PH monitor 9 is the digital display type test equipment of a kind of measurement and reaction solution pH value；
PH monitor 9 is connected with PH meter 10 and micro air pump 8 respectively, obtains pH value in linker 4 in real time by PH meter 10, simultaneously
Control micro air pump 8 blasts air into linker 4, adjusts the pH value of solution in linker 4.
10) PH meter 10
PH meter 10 is a kind of solution pH value measuring sensor of standard；
PH value in linker 4 is measured in real time, and sends data to PH monitor 9.
11) peristaltic pump 11
Peristaltic pump 11 is minisize liquid pumping equipment, contains 3 or more communicating passages, the order of connection of each pipeline is according to liquid flow
Logical direction carries out, and is respectively as follows:
The flow pipe of inlet 12-7 under linker 4 to sample preparation device 12；
The flow pipe of the upper liquid outlet 12-6 of sample preparation device 12 to 2 liquid injection port 2-3 of reaction kettle
Thermostatic water bath 13 to 12 inlet valve 12-13 of sample preparation device flow pipe.
12) sample preparation device 12
Such as Fig. 2, sample preparation device 12 includes subjects --- malm 12-1；It is provided with upper cover plate 12-2, lower cover plate 12-3, receives
Collect channel 12-4, reservoir channel 12-5, upper liquid outlet 12-6, lower inlet 12-7, screw rod 12-8, inner tube wall 12-9, outer tube wall
12-10, water 12-11, flowing water Valve 12-12, inlet valve 12-13；
Its position and connection relationship are: upper cover plate 12-2, lower cover plate 12-3, inner tube wall 12-9, outer tube wall 12-10 pass through screw rod
12-8 constitutes a cylinder-shaped entirety, inside fills up malm 12-1；Be provided on upper cover plate 12-2 collection channel 12-4,
Upper liquid outlet 12-6 and its flowing water Valve 12-12 is provided with lower inlet 12-7 and its inlet valve 12- on lower cover plate 12-3
13 and reservoir channel 12-5；Water 12-11 is filled between inner tube wall 12-9 and outer tube wall 12-10.
13) thermostatic water bath 13
Thermostatic water bath 13 is a kind of standard water tank heating equipment；
It is controlled by temperature controller 14, the water 12-11 in thermostatic water bath 13 is input to inner tube wall 12-9 and outer tube wall 12- through peristaltic pump 11
Between 10.
14) temperature controller 14
Temperature controller 14 is a kind of regulation integral intelligent temperature control instrument of standard；
It is connect respectively with temperature sensor 15 and thermostatic water bath 13, by the real-time acquisition inner tube wall 12-9 of temperature sensor 15 and outside
The temperature of water 12-11 between barrel 12-10, and thermostatic water bath 13 is controlled, stablize water temperature.
15) temperature sensor 15
Temperature sensor 15 is a kind of normal temperature measurement sensor；
It is arranged at the outer tube wall 12-10 of sample preparation device 12, water 12- between inner tube wall 12-9 and outer tube wall 12-10 can be obtained in real time
11 temperature, and temperature is transmitted to temperature controller 14.
16) flue 16
Flue 16 is a kind of standard stainless steel flue；
It is pumped into carbon dioxide gas into reaction kettle 2 for dioxide bottle 1, is pumped into for micro air pump 8 into linker 4
Air.
17) liquid line 17
Liquid line 17 is a kind of polyfluortetraethylene pipe of standard；
Circulation transmission for liquid in system.
3, the working mechanism of this system
This system simulates the natural physical condition in the bonding process of shallow-layer ocean, is obtained using the method for continuous flowing and repeated precipitation
Obtain degree of consolidation uniformly cementing malm 12-1；In sample preparation, by changing malm 12-1 particle composition, initial hole
Than the cementing sample that can get different types of structure and ingredient with cement content, can be mentioned for the analysis test of extensive unitary variant
Guarantee for sample.
Claims (2)
1. a kind of pilot system for preparing cementing malm based on repeated precipitation, it is characterised in that:
Including dioxide bottle (1), reaction kettle (2), filter (3), linker (4), Water level controller (5), water-level gauge
(6), regulating valve (7), micro air pump (8), PH monitor (9), PH count (10), peristaltic pump (11), sample preparation device (12), thermostatic water bath
(13), temperature controller (14), temperature sensor (15), flue (16) and liquid line (17)；
Its position and connection relationship are:
On horizontal operation face, from left to right, dioxide bottle (1) and reaction kettle (2) pass through connection before and after flue (16)
Form gas circuit；Reaction kettle (2), filter (3), linker (4), peristaltic pump (11) and sample preparation device (12) by liquid line (17) according to
Secondary connection forms fluid path；
Water-level gauge (6) is put into the bottom of linker (4) left-hand container, regulating valve (7) be placed in reaction kettle (2) and filter (3) it
Between liquid line (17) on；Water level controller (5) is connect with regulating valve (7) and water-level gauge (6) respectively；
Two flues (16 points) of micro air pump (8) do not protrude into the bottom of linker (4) two sides container；
PH monitor (9) is connect with PH meter (10) and micro air pump (8) respectively, obtains the pH value of linker (4) interior solution in real time,
And by the work of control micro air pump (8), the air content being pumped into linker (4) is adjusted, the pH value of solution is adjusted；
Peristaltic pump (11) is separately connected three solution flow pipes, and the order of connection of each pipeline is carried out according to liquid communication direction,
Be respectively as follows: linker (4) to sample preparation device (12) lower inlet (12-7) flow pipe, the upper liquid outlet of sample preparation device (12)
(12-6) to reaction kettle (2) liquid injection port (2-3) flow pipe, the inlet valve of thermostatic water bath (13) to sample preparation device (12)
The flow pipe of (12-13)；
A water-level gauge (6), a PH meter (10) and two flues (16) are placed in linker (4)；
The sample preparation device (12) includes subjects --- malm (12-1)；It is provided with upper cover plate (12-2), lower cover plate
(12-3), collection channel (12-4), reservoir channel (12-5), upper liquid outlet (12-6), lower inlet (12-7), screw rod (12-
8), inner tube wall (12-9), outer tube wall (12-10), water (12-11), flowing water Valve (12-12), inlet valve (12-13)；Its position
Set is with connection relationship: upper cover plate (12-2), lower cover plate (12-3), inner tube wall (12-9), outer tube wall (12-10) pass through screw rod
(12-8) constitutes a cylinder-shaped entirety, inside fills up malm (12-1)；It is logical that collection is provided on upper cover plate (12-2)
Road (12-4), upper liquid outlet (12-6) and its flowing water Valve (12-12), are provided with lower inlet (12- on lower cover plate (12-3)
And its inlet valve (12-13) and reservoir channel (12-5) 7)；Water is filled between inner tube wall (12-9) and outer tube wall (12-10)
(12-11)；
Inlet valve (12-13) and flowing water Valve (12-12) are opened, water (12-11) and thermostatic water bath are made by liquid line (17)
(13) circulation is kept, temperature sensor (15) are provided on outer tube wall (12-10), measure the temperature of water (12-11), and
Temperature is transmitted to temperature controller (14).
2. the test method based on system described in claim 1, it is characterised in that include the following steps:
1. a certain amount of deionized water of injection, pure calcium carbonate powder and minimal amount of magnesium chloride solids powder in reaction kettle (2),
Start blender (2-1), solution is sufficiently stirred, obtains the calcium carbonate soln of saturation, controls the additional amount of magnesium chloride, makes in solution
The mass fraction of magnesium ion is within hundred a ten thousandths；
2. it is in running order to be kept stirring device (2-1), open air valve (1-1), carbon dioxide gas is made to pass through air inlet (2-2)
Into reaction kettle (in 2), controlling the air pressure in reaction kettle (2) is 100kPa, and the solubility of calcium carbonate is with dioxy in reaction kettle (2)
Change the increase of carbon partial pressure and increase, and reaches hypersaturated state, meanwhile, the pH value of solution reduces；
3. oversaturated calcium carbonate soln flows through filter (3), the nucleus in solution is filtered out, is flowed into linker (4) afterwards；
4. Water level controller (5) passes through SEA LEVEL VARIATION in water-level gauge (6) real-time monitoring linker (4)；Meanwhile Water level controller
(5) it is connected with regulating valve (7), adjusts the rate that solution is flowed out from reaction kettle (2), keeps stable level in linker (4)；
5. PH monitor (9) is connect with PH meter (10) and micro air pump (8) respectively, the PH of linker (4) interior solution is obtained in real time
Value, and by the work of control micro air pump (8), the air content being pumped into linker (4) is adjusted, the pH value of solution is adjusted；
6. being pumped into air in linker (4) by micro air pump (8), the carbon dioxide in solution is removed, non-equilibrium shape is obtained
The pH value of the supersaturated calcium carbonate soln of state, solution increases, and the pump gas velocity rate of micro air pump (8) is controlled by PH monitor 9, protects
Holding solution pH value is 7.3-7.4；
7. oversaturated calcium carbonate soln in linker (4) is slow transitted through lower inlet (12-7) using peristaltic pump (11) to inject
It injects in sample preparation device (12), the calcium carbonate in solution flows into malm (12-1) with solution, is encountering suitable nucleation position
It is precipitated when point, the calcium carbonate of precipitating exists in the form of aragonite and calcite；
8. the precipitating due to calcite takes more time, after solution flows out malm (12-1), still in nonequilibrium condition,
Solution will be pumped in reaction kettle (2) again by peristaltic pump (11) and be stirred, and supersaturated calcium carbonate soln is made；
9. sample preparation process loops back and forth like this, so that the intergranular pore in malm (12-1) is obtained the cementing of precipitation of calcium carbonate and fill
It fills out, which also simulates the cementation of malm under tidal action (12-1), after sample preparation, removes solution sample preparation
Device (12) obtains the cementing malm of cylindrical body (12-1).
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113405952A (en) * | 2021-05-10 | 2021-09-17 | 武汉理工大学 | Device for simulating coral reef sand cementing process |
| CN115343125A (en) * | 2022-08-08 | 2022-11-15 | 中国地质科学院矿产资源研究所 | Carbonate precipitation device and lithium carbonate isotope analysis method |
| CN118067479A (en) * | 2024-04-17 | 2024-05-24 | 中国科学院武汉岩土力学研究所 | A post-processing method for rock 3D printing samples based on accelerated crystallization consolidation |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120031303A1 (en) * | 2010-08-06 | 2012-02-09 | Constantz Brent R | Calcium carbonate compositions and methods thereof |
| CN105424430A (en) * | 2015-11-05 | 2016-03-23 | 河海大学 | Manufacturing method of cemented soil and stone mixed sample |
| CN106018060A (en) * | 2016-06-17 | 2016-10-12 | 天津大学 | Microorganism-induction calcium-carbonate-deposition film laminating testing device and method |
| CN106168550A (en) * | 2016-08-10 | 2016-11-30 | 天津大学 | Microorganism solidification Extra-fine sand is used to form the Experimental Method in Laboratory of artificial crust layer |
| CN106245691A (en) * | 2016-09-28 | 2016-12-21 | 中国科学院武汉岩土力学研究所 | Calcareous sand sound load Multifunctional pile base model test apparatus |
| CN106769751A (en) * | 2016-11-29 | 2017-05-31 | 中国石油大学(华东) | A kind of half cementing artificial core model and its sand-filling apparatus and method |
-
2018
- 2018-11-18 CN CN201811371098.6A patent/CN109211643B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120031303A1 (en) * | 2010-08-06 | 2012-02-09 | Constantz Brent R | Calcium carbonate compositions and methods thereof |
| CN105424430A (en) * | 2015-11-05 | 2016-03-23 | 河海大学 | Manufacturing method of cemented soil and stone mixed sample |
| CN106018060A (en) * | 2016-06-17 | 2016-10-12 | 天津大学 | Microorganism-induction calcium-carbonate-deposition film laminating testing device and method |
| CN106168550A (en) * | 2016-08-10 | 2016-11-30 | 天津大学 | Microorganism solidification Extra-fine sand is used to form the Experimental Method in Laboratory of artificial crust layer |
| CN106245691A (en) * | 2016-09-28 | 2016-12-21 | 中国科学院武汉岩土力学研究所 | Calcareous sand sound load Multifunctional pile base model test apparatus |
| CN106769751A (en) * | 2016-11-29 | 2017-05-31 | 中国石油大学(华东) | A kind of half cementing artificial core model and its sand-filling apparatus and method |
Non-Patent Citations (1)
| Title |
|---|
| ISMAIL M.A. ET AL.: "Cementation of porous materials using calcite", 《GEOTECHNIQUE》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113405952A (en) * | 2021-05-10 | 2021-09-17 | 武汉理工大学 | Device for simulating coral reef sand cementing process |
| CN115343125A (en) * | 2022-08-08 | 2022-11-15 | 中国地质科学院矿产资源研究所 | Carbonate precipitation device and lithium carbonate isotope analysis method |
| CN118067479A (en) * | 2024-04-17 | 2024-05-24 | 中国科学院武汉岩土力学研究所 | A post-processing method for rock 3D printing samples based on accelerated crystallization consolidation |
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