CN206489154U - A kind of adjustable soil sample carbonization laboratory apparatus of confined pressure - Google Patents
A kind of adjustable soil sample carbonization laboratory apparatus of confined pressure Download PDFInfo
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- CN206489154U CN206489154U CN201720150831.6U CN201720150831U CN206489154U CN 206489154 U CN206489154 U CN 206489154U CN 201720150831 U CN201720150831 U CN 201720150831U CN 206489154 U CN206489154 U CN 206489154U
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- carbon dioxide
- soil body
- confined pressure
- pressure
- body sample
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Abstract
The utility model discloses a kind of adjustable soil sample carbonization laboratory apparatus of confined pressure, constituted by confined pressure loading system, for carbon dioxide system and carbonization experimental platform system：In confined pressure loading system, motor, water tank and forcing pipe, which are constituted, is equipped with pressurizing valve on loop, forcing pipe；For in carbon dioxide system, carbon dioxide steel cylinder, pressure gauge are connected with pressure regulator valve by carbon dioxide conduit provides a stable air pressure jointly, carbon dioxide conduit end is connected to above soil body sample at permeable stone by an air inlet pipe, and escape pipe and standby escape pipe are disposed with soil body sample lower substrates seat；It is carbonized in experimental platform system, balancing gate pit's top cover arrangement has bleeder screw, and soil body sample is positioned on base seat, and upper and lower is disposed with around permeable stone, soil body sample and wrapped up by rubber film.The utility model has that confined pressure steady, air pressure are adjustable, optional advantage of entering outgassing direction.
Description
Technical field
The utility model is related to Geotechnical Engineering experimental technique field, specifically a kind of adjustable soil sample carbonization experiment instrument of confined pressure
Device.
Background technology
Current reinforcement of soft soil field mainly uses Portland cement（Portland cement）As curing agent, such curing agent is deposited
In following point：1. resource and energy resource consumption are serious, and cement raw material calcining heat is up to 1450 DEG C, need to consume substantial amounts of heating power money
Source, averagely often production 1t clinkers need consumption 0.13t clays, 0.95t lime stones and 0.11 ton of standard to China cement industry
Coal；2. CO2 emission and atmosphere pollution are serious, and production 1t cement needs to discharge 0.85t carbon dioxide, cement work to air
The carbon dioxide of industry discharge accounts for 10% or so of anthropogenic discharge's carbon dioxide, in addition, in cement production process, can also produce a large amount of
Dust and the toxic gas such as flue dust and sulfur dioxide, nitrogen oxides, fluorine gas be discharged into air, equally environment is caused sternly
The pollution of weight；3. gain in strength is slow, and cement solidification soil, which need to typically conserve 28d or so, can just the high intensity of comparison, for when
Between have and be difficult to meet needs for the engineering of particular/special requirement.
In recent years, considerable carbonization curing technology is suggested, and applied to soil stabilization field.The original substantially of the technology
Reason is, using activated magnesia as soil body curing agent, after the soil body and activated magnesia are thoroughly mixed, then to apply certain
The carbon dioxide of pressure to stirring soil is carbonized, by fast reaction therein, reach quickly reduce soil moisture content,
Reduce soil cracking behavior and improve the purpose of soil strength, be solidificated in while absorbing great amount of carbon dioxide gas in the soil body,
To consume the carbon dioxide of magnesia calcining production process release.
Utility model content
The purpose of this utility model is to provide confined pressure adjustable soil sample carbonization laboratory apparatus, with confined pressure steady, air pressure
It is adjustable, enter the optional advantage of outgassing direction.
To achieve the above object, the utility model provides following technical scheme：
A kind of adjustable soil sample carbonization laboratory apparatus of confined pressure, including confined pressure loading system, for carbon dioxide system and carbonization
Experimental platform system, the carbonization experimental platform system includes the balancing gate pit being made up of top cover, base seat and pressure wall, the base
Base places soil body sample to be carbonized for middle be provided with boss structure, boss, at the top and bottom of the soil body sample respectively
One piece of permeable stone is placed, the soil body sample is wrapped up together with the permeable stone above and below it by plastic film, the soil body sample top
The permeable stone in portion is provided with the air inlet pipe being connected with for carbon dioxide system, and the permeable stone of soil body sample bottom is provided with and pressure
Outdoor is connected and the escape pipe with valve, and high point is provided with the bleeder screw for being vented, the pressure at the top of the balancing gate pit
The base seat of room bottom is provided with the water inlet pipe being connected with confined pressure loading system, and the confined pressure loading system provides experiment demand pressure
The water of power.
The elastic force for being used for tightening plastic film is provided with as improvement project, at the permeable stone up and down of the soil body sample
Rope.
As improvement project, the confined pressure loading system includes motor, forcing pipe and water tank and constitutes loop, the electricity
Machine water supply case is pressurizeed, and pressurizing valve, the pressurization pipe end and the water inlet pipe of carbonization experimental platform system are housed on forcing pipe
It is connected.
As improvement project, the confession carbon dioxide system includes passing sequentially through the connected carbon dioxide of carbon dioxide conduit
Steel cylinder, pressure gauge and pressure regulator valve, the pressure regulation valve outlet pass through carbon dioxide conduit and the air inlet pipe of carbonization experimental platform system
It is connected.
As improvement project, the standby escape pipe with valve is additionally provided with the permeable stone of the soil body sample bottom.
As improvement project, permeable stone at the top of the soil body sample be provided be used for by soil body sample fix it is vertical
Bar.
As improvement project, the escape pipe on the permeable stone of the soil body sample bottom can be as supply air line with supplying titanium dioxide
Carbon system is connected, and the carbon dioxide air supply pipe at the top of the soil body sample on permeable stone can be connected to balancing gate pit as outlet pipe
Outside.
Compared with prior art, the beneficial effects of the utility model are：
The utility model is in strict accordance with the related Experimental Standardization of soil sample carbonization, and existing carbonization instrument is more directly in closing
Room is passed through carbon dioxide to sample, experimental result may be displayed on soil sample intensity it is relatively low when, can occur cracking phenomena, this be by
When no application confined pressure, when being passed through carbon dioxide to soil sample, gas not fully from top to bottom or from top to bottom, has one
Portion gas overflows from side, and this portion gas can give one expansive force of sample, destroy soil structures, sample is produced crack.
This experimental provision can make water from tank flow balancing gate pit by the regulation and control of pressure-loaded system, motor control, so that
Make hydraulic pressure be converted into around soil sample to bear to stablize confined pressure, by supplying carbon dioxide system, allow experimenter in different dioxies
Change the carbonization study mechanism for carrying out soil sample under carbon air pressure and different confined pressures, experimental result is more reliable.
The utility model provides an accurate platform for the series of experimental research that soil is carbonized, and having experiment can weigh
Renaturation；Physicochemical properties research after being carbonized for soil, can by based on the correlation test on the basis of the utility model,
Carry out complementary testing result, make experiment that there is complementarity.
The utility model has that confined pressure steady, air pressure are adjustable, optional advantage of entering outgassing direction.
The utility model can realize and soil sample confined pressure is precisely controlled that more meeting experiment will by confined pressure loading system
Ask, the cracking phenomena tested and produced without confined pressure control in the past is improved, it can in addition contain by supplying carbon dioxide system
In pressure valve and reset valve carry out the adjustable transsexual specific experiment of being more convenient for of the pressure of carbon dioxide, air inlet pipe and escape pipe
In adjustment.
Brief description of the drawings
Fig. 1 is the structural representation of soil sample carbonization laboratory apparatus；
Fig. 2 is the carbonization experimental platform system schematic diagram of soil sample carbonization laboratory apparatus；
In figure：A1- motors, A2- forcing pipes, A3- water tanks, A4- pressurizing valves, B1- carbon dioxide steel cylinders, B2- pressure gauges,
B3- pressure regulator valves, C1- bleeder screws, C2- top covers, C3- pressure walls, C4- air inlet pipe, C5- soil body samples, C6- water inlet pipes, C7- bis-
Carbonoxide pipeline, C8- escape pipes, the standby escape pipes of C9-, C10- balancing gate pits, C11, C12- permeable stone, C13- base seats, C14-
Vertical bar.
Embodiment
Below in conjunction with the utility model embodiment and accompanying drawing, the technical scheme in the utility model embodiment is carried out clear
Chu, it is fully described by, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole realities
Apply example.Based on the embodiment in the utility model, those of ordinary skill in the art institute under the premise of creative work is not made
The every other embodiment obtained, belongs to the scope of the utility model protection.
Refer in Fig. 1 and Fig. 2, the utility model embodiment, a kind of adjustable soil sample carbonization laboratory apparatus of confined pressure, by enclosing
Press loading system, for carbon dioxide system and carbonization experimental platform system composition：The confined pressure loading system includes motor A1, added
Pressure pipe A2 and water tank A3 is constituted on loop, forcing pipe A2 equipped with pressurizing valve A4, the motor A1 water supply casees A3 pressurizations；It is described
For in carbon dioxide system, carbon dioxide steel cylinder B1, pressure gauge B2 pass sequentially through carbon dioxide conduit C7 with pressure regulator valve B3 and are connected
It is connected, carbon dioxide conduit C7 end is connected to the permeable stone C11 above soil body sample C5, soil by an air inlet pipe C4
The permeable stone C12 of body sample C5 bottoms is provided with escape pipe C8 and standby outlet with being connected outside balancing gate pit C10 and with valve
Pipe C9；The carbonization experimental platform system includes the balancing gate pit C10 that top cover C2, base seat C13 and pressure wall C3 are constituted, balancing gate pit
Top cover C2 at the top of C10 is provided with the bleeder screw C1 for being vented, in the balancing gate pit C10 that pressure wall C3 is surrounded, soil body examination
Sample C5 is positioned on base seat C13 boss, and soil body sample C5 upper and lowers are disposed with two pieces of permeable stones C11, C12, the soil body
Sample C5 around permeable stone C11, C12 above and below it by plastic film together with being wrapped up, on the base seat C13 of balancing gate pit C10 bottoms
Provided with the water inlet pipe C6 for being intake to balancing gate pit C10, water inlet pipe C6 is connected with the forcing pipe A2 ends of confined pressure loading system, institute
State confined pressure loading system provide experiment demand pressure water, water by water inlet pipe C6 inject balancing gate pit C10 in, carbon dioxide by
Air inlet pipe C4 and escape pipe C8 or standby escape pipes C9 constitutes path.
The stretch cord for being used for tightening plastic film, institute are provided with permeable stone up and down C11, C12 of the soil body sample C5
State that the setting of stretch cord can effectively prevent water at permeable stone and permeable stone and soil body sample C5 junctions enter soil body sample
C5。
Permeable stone C11 at the top of the soil body sample C5 is provided with the vertical bar C14 for being used for fixing soil body sample C5.
The air inlet pipe C4, escape pipe C8, carry valve on standby escape pipe C9 and water inlet pipe C6 pipeline.
In the utility model embodiment, pressure regulator valve B3 includes valve body, non-return note bubbler, magnetic valve and reset valve, magnetic valve
BdZ series explosion magnetic valve flame-proof types are used, coordinate different circuits to realize expected control, the precision of control and spirit
Activity can ensure；Reset valve uses the serial high vacuum reset valve of GW-J-T types, for carbonization experimental platform system
It is filled with carbon dioxide and can accurate adjustment charge flow rate.Both the above sensor in process of the test by air humidity,
The influence of temperature etc. is smaller, it is ensured that environmental Kuznets Curves are tested in the accuracy and reliability of data, the utility model embodiment and are existed
Temperature（21±1℃）And relative humidity（96%±2%）It is lower to carry out.
Soil body sample C5 requires to make in strict accordance with soil test, is made using static pressure method or hammering method.
The application method of the adjustable soil sample carbonization laboratory apparatus of described confined pressure, comprises the following steps：
（1）Adjustment and installation instrument：Base seat C13 is placed in horizontal table top, flattens, titanium dioxide is put well in close position
Carbon steel bottle B1 is simultaneously linked together it with pressure gauge B2 and pressure regulator valve B3 by carbon dioxide conduit C7, passes through carbon dioxide pipe
Road C7 will for carbon dioxide system with carbonization experimental platform system air inlet pipe C4 connect, inspection air inlet pipe C4 and escape pipe C8 with
Standby escape pipe C9 ventilatory conditions.
（2）Make soil body sample C5：According to requirement of experiment make dimension soil body sample C5, using different soils,
The soil of different water cut or different curing agent ratios, soil body sample C5 is fabricated to using hammering method or static pressure method, is used after de- sample
Rubber film is wrapped up, and permeable stone C11, C12 are placed respectively on soil body sample C5 tops and bottom end, and with stretch cord in permeable stone
Tightly wrapped outside rubber film at C11, C12 in order to avoid soil body sample C5 is intake, it is flat that most at last soil body sample C5 is placed on carbonization experiment
On platform system substrate seat C13 boss.
（3）Confined pressure is adjusted：The confined pressure dial plate on motor A1, and regulation motor A1 is opened until meeting the expected confined pressure of experiment,
Current are flowed into by forcing pipe A2 and water inlet pipe C6 from water tank A3 and are carbonized in the balancing gate pit C10 of experimental platform system.In water filling
The bleeder screw C1 exhausts at the top of balancing gate pit C10 are opened in journey, water fills and bleeder screw C1 is tightened after balancing gate pit C10, waits water
Next step operation can be carried out after continuing the confined pressure for increasing up to setting by pressing.
（4）Start experiment：Pressure regulator valve B3 is opened, carbon dioxide is by carbon dioxide conduit C7 and air inlet pipe C4 from soil
Body sample C5 tops are injected, and are flowed out by escape pipe C8 or standby escape pipes C9 from soil body sample C5 bottoms, make carbon dioxide gas
Body continues 2-4h uniformly across soil body sample C5, carbonisation.
（5）Repeat to test：Required according to different tests, control different confined pressures to carry out repeated carry out step（1）To arrangement
（4）, obtain repeated experiment result.
The utility model passes through motor control confined pressure, pressure regulator valve in strict accordance with the Geotechnical Engineering specification in terms of soil test
Pressure during carbon dioxide carbonization is controlled, the research in terms of soil carbonization is successfully carried out, it is to avoid because not applying confined pressure
Caused soil body sample cracking phenomena, significantly increases the reliability of experimental data.
The utility model provides an accurate platform for the series of experimental research that soil is carbonized, and having experiment can weigh
Renaturation；Physicochemical properties research after being carbonized for soil, can by based on the correlation test on the basis of the utility model,
Carry out complementary testing result, make experiment that there is complementarity.
The utility model has that confined pressure steady, air pressure are adjustable, optional advantage of entering outgassing direction.
The utility model makes soil sample in confined pressure state is stablized by confined pressure loading system, closer to actual conditions, improves
The situation of carbon dioxide is directly led in conventional experiment to soil sample, it can in addition contain exporting different pressure by pressure regulator valve
Carbon dioxide.
It is obvious to a person skilled in the art that the utility model is not limited to the details of above-mentioned one exemplary embodiment, and
And in the case of without departing substantially from spirit or essential attributes of the present utility model, can realize that this practicality is new in other specific forms
Type.Therefore, no matter from the point of view of which point, embodiment all should be regarded as exemplary, and is nonrestrictive, this practicality is new
The scope of type limits by appended claims rather than described above, it is intended that the equivalency fallen in claim is contained
All changes in justice and scope are included in the utility model.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that for clarity, those skilled in the art should
Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
It may be appreciated other embodiment.
Claims (7)
1. a kind of adjustable soil sample carbonization laboratory apparatus of confined pressure, including it is confined pressure loading system, real for carbon dioxide system and carbonization
Test plateform system, it is characterised in that：The carbonization experimental platform system includes the pressure being made up of top cover, base seat and pressure wall
Room, the base seat places soil body sample to be carbonized for middle be provided with boss structure, boss, at the top of the soil body sample and
One piece of permeable stone is placed in bottom respectively, and the soil body sample is wrapped up together with the permeable stone above and below it by plastic film, the soil
Permeable stone at the top of body sample is provided with the air inlet pipe being connected with for carbon dioxide system, the permeable stone of soil body sample bottom and set
There is high point at the top of the escape pipe with being connected outside balancing gate pit and with valve, the balancing gate pit to be provided with the bleeder screw for being vented,
The base seat of the balancing gate pit bottom is provided with the water inlet pipe being connected with confined pressure loading system, and the confined pressure loading system provides real
Test the water of demand pressure.
2. a kind of confined pressure adjustable soil sample carbonization laboratory apparatus according to claim 1, it is characterised in that：The soil body sample
Permeable stone up and down at be provided with and be used for the stretch cord that tightens plastic film.
3. a kind of confined pressure adjustable soil sample carbonization laboratory apparatus according to claim 1, it is characterised in that：The confined pressure loading
System includes motor, forcing pipe and water tank and constituted on loop, the motor water supply case pressurization, forcing pipe equipped with pressurizing valve,
The pressurization pipe end is connected with the water inlet pipe for the experimental platform system that is carbonized.
4. a kind of confined pressure adjustable soil sample carbonization laboratory apparatus according to claim 1, it is characterised in that：The confession titanium dioxide
Carbon system includes passing sequentially through carbon dioxide conduit connected carbon dioxide steel cylinder, pressure gauge and pressure regulator valve, and the pressure regulator valve goes out
Mouth is connected by carbon dioxide conduit with the air inlet pipe for the experimental platform system that is carbonized.
5. a kind of confined pressure adjustable soil sample carbonization laboratory apparatus according to claim 1, it is characterised in that：The soil body sample
The standby escape pipe with valve is additionally provided with the permeable stone of bottom.
6. a kind of confined pressure adjustable soil sample carbonization laboratory apparatus according to claim 1, it is characterised in that：The soil body sample
The permeable stone at top is provided with the vertical bar for being used for fixing soil body sample.
7. a kind of confined pressure adjustable soil sample carbonization laboratory apparatus according to claim 1, it is characterised in that：The soil body sample
Escape pipe on the permeable stone of bottom can be connected as supply air line with for carbon dioxide system, permeable stone at the top of the soil body sample
On carbon dioxide air supply pipe can be connected to as outlet pipe outside pressure room.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720150831.6U CN206489154U (en) | 2017-02-20 | 2017-02-20 | A kind of adjustable soil sample carbonization laboratory apparatus of confined pressure |
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| CN201720150831.6U CN206489154U (en) | 2017-02-20 | 2017-02-20 | A kind of adjustable soil sample carbonization laboratory apparatus of confined pressure |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107389398A (en) * | 2017-06-30 | 2017-11-24 | 武汉大学 | A kind of adjustable soil sample instrument for carbonizing of confined pressure |
| CN107941599A (en) * | 2017-12-11 | 2018-04-20 | 沈阳建筑大学 | A kind of confined pressure loading device of dynamic analog horizontal drilling |
| CN110203932A (en) * | 2019-06-05 | 2019-09-06 | 东南大学 | A kind of device and preparation method of foam concrete solidified carbon dioxide |
| CN112067381A (en) * | 2020-08-07 | 2020-12-11 | 海灿(宁波)工程科技有限公司 | Sample preparation device and method for roadbed level filler soil |
-
2017
- 2017-02-20 CN CN201720150831.6U patent/CN206489154U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107389398A (en) * | 2017-06-30 | 2017-11-24 | 武汉大学 | A kind of adjustable soil sample instrument for carbonizing of confined pressure |
| CN107941599A (en) * | 2017-12-11 | 2018-04-20 | 沈阳建筑大学 | A kind of confined pressure loading device of dynamic analog horizontal drilling |
| CN110203932A (en) * | 2019-06-05 | 2019-09-06 | 东南大学 | A kind of device and preparation method of foam concrete solidified carbon dioxide |
| CN112067381A (en) * | 2020-08-07 | 2020-12-11 | 海灿(宁波)工程科技有限公司 | Sample preparation device and method for roadbed level filler soil |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170912 Termination date: 20180220 |
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| CF01 | Termination of patent right due to non-payment of annual fee |