CN203705296U - Device for rapidly measuring content of calcium carbonate in soil - Google Patents
Device for rapidly measuring content of calcium carbonate in soil Download PDFInfo
- Publication number
- CN203705296U CN203705296U CN201420082826.2U CN201420082826U CN203705296U CN 203705296 U CN203705296 U CN 203705296U CN 201420082826 U CN201420082826 U CN 201420082826U CN 203705296 U CN203705296 U CN 203705296U
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- soil
- hole
- calcium carbonate
- buret
- burette
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- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Abstract
The utility model discloses a device for rapidly measuring the content of calcium carbonate in soil. The device comprises a burette stand, a burette for accommodating an HCl solution, a water stop valve, a two-hole rubber plug, test tubes, a rotating plate, a connecting rubber tube, a plate rack and an aneroid barometer, wherein the burette is fixed on the burette stand; a burette orifice is connected with the water stop valve for controlling a flow velocity of the HCl solution; a group of test tubes are inserted into the rotating plate fixed on the plate rack respectively; test soil is placed in the test tubes; the two-hole rubber plug is mounted at an orifice of each test tube; and one hole of each two-hole rubber plug is connected with a conduit below the burette, and the other hole is connected with the aneroid barometer through the rubber tube for conveying gas. With the adoption of the device for rapidly measuring the content of calcium carbonate in soil, the content of calcium carbonate in multiple soil samples can be rapidly measured according to the gasometric method principle.
Description
Technical field
The utility model relates to a kind of soil chemical properties measuring equipment, relates in particular to a kind of device of laboratory measurement carbon in soil acid calcium content.
Background technology
In soil test, usually first examine and determine the lime reaction of soil, this is not only because Carbonates In Soil is easily examined and determine and estimated, and because has or not calcium carbonate and content how much all can have influence on the numerous characteristics of soil.For example, the leaching degree of soil, the degree of soil genesis and development, soil aciditiy, soil nutritive element there is form and degree of functioning, soil degree of base saturation, the cation type of adsorption by soil, soil texture, soil microflora, and whether soil can alkalize all relevant with calcium carbonate with alkalization degree etc. when reclamation of saline soil.Concerning calacareous soil, conventionally using calcium carbonate the leaching in section and deposit feature as judging one of index of soil formation, classification and fertility state.
Method method with tolerance and the neutralization titration of traditional measurement carbon in soil acid calcium content.The device of in the past measuring carbon in soil acid calcium content is simple, and soil sample of every measurement change primary device again, and program is more loaded down with trivial details, wastes time and energy.
Summary of the invention
The purpose of this utility model is to provide the device of a kind of Fast Measurement carbon in soil acid calcium content, utilizes to solve the technical matters that gas method principle can the multiple carbon in soils acid of Quick Measurement calcium content.
In order to realize foregoing invention object, the technical scheme that the utility model adopts is as follows:
A device for Fast Measurement carbon in soil acid calcium content, comprising: titration stand, the buret that holds HCl solution, water check valve two hole rubber stoppers, test tube, rotating disk, connection rubber tube, plate rail and aneroid barometer; Described buret is fixed on titration stand, the buret mouth of pipe is connected with the water check valve of controlling HCl solution flow rate, one group of test tube inserts respectively in the rotating disk being fixed on plate rail, in vitro place testing soil, the mouth of pipe of test tube is provided with two hole rubber stoppers, two hole rubber stoppers are the in succession conduit of buret below of a hole wherein, and another hole is connected with aneroid barometer by the proofed sleeve of carrying gas.
The utility model has the advantages that the speed that can accelerate to measure carbon in soil acid calcium content, improve measuring method, reduce computation process.
Accompanying drawing explanation
Fig. 1 structural representation of the present utility model.
Fig. 2 is structure assembling exploded view of the present utility model.
In figure, number: 1, titration stand, 2, buret, 3, water check valve, 4, two hole rubber stoppers, 5, test tube, 6, rotating disk, 7, connect hose, 8, plate rail, 9, aneroid barometer.
Embodiment
Structure of the present utility model is referring to Fig. 1,2.
A device for Fast Measurement carbon in soil acid calcium content, forms just like lower member: titration stand 1, buret 2, water check valve 3, two hole rubber stoppers 4, test tube 5, rotating disk 6, connection rubber tube 7, plate rail 8, aneroid barometer 9.The space that has holding test tubes 5 on described rotating disk 6, rotating disk 6 can rotate, and drives test tube 5 on rotating disk 6 to move simultaneously.Described buret 2 is fixed on titration stand 1, buret 1 mouth of pipe is connected with the water check valve 3 of controlling HCl solution flow rate, one group of test tube 5 inserts respectively in the rotating disk 6 being fixed on plate rail 8, the interior placement testing soil of test tube 5, the mouth of pipe of test tube 5 is provided with two hole rubber stoppers 4, two hole rubber stoppers 4 are the in succession conduit of buret 2 belows of a hole wherein, and another hole is connected with aneroid barometer 9 by the proofed sleeve of carrying gas.Aneroid barometer 9 connects reading dial plate, and dial plate high scale is calcium carbonate quality (g).Test tube 5 turns to buret 2 times, and two 5 mouthfuls of hole rubber stopper 4 stoppered test tubes, splash into excessive hydrochloric acid, and generation carbon dioxide is by connection rubber tube to aneroid barometer 9 pressure, and aneroid barometer 9 drives read table index, reads calcium carbonate quality (g).
The utility model is to realize with principle by the following method:
Utilize CaCO in pedotheque
3with HCl effect, produce CO
2: CaCO
3+ 2HCl-→ CaCl
2+ H
2o+CO
2↑
By produced carbon dioxide collection, record the volume of carbon dioxide, the content that can calculate calcium carbonate according to air pressure at that time and temperature, carbon dioxide has certain proportion gentle the depressing of uniform temperature, can converse the content of calcium carbonate according to carbon dioxide weight.
Aneroid barometer is barometrical one.Its principle: PV=NRT
Wherein: P is pressure; V is volume; NR is constant; T is temperature.
Its major part is a kind of vacuum metal box of corrugated surface.In order not make can be flattened by atmospheric pressure, outwards haul it with elastic steel sheet.Air pressure increases, and lid falls in; Air pressure reduces, and elastic steel sheet just pulls up lid.The variation of lid is passed to pointer by gear train, makes needle deflection.Reading below pointer index dial, can know the value of current air pressure.
Calcium carbonate is produced to the measurement of gas volume and can adopt the direct reading of barometer dial plate, produce carbon dioxide according to standard calcium carbonate repeatedly and produce the pointer position of air pressure on barometer dial plate, demarcate calcium carbonate content, draw scale.In the more constant situation of the gentle pressure ratio of temperature, measure, can save the correction of temperature and air pressure.
The device of designed Fast Measurement carbon in soil acid calcium content is measured by following steps above:
(1) on titration stand, install and fill HCl(1:2) buret of solution;
(2) two hole rubber stoppers are installed under buret, buret is inserted in a hole, and test tube is inserted in another hole;
(3) test tube upper end connects proofed sleeve, the barometer of proofed sleeve other end connecting band pointer watch dial;
(4) on rotating rotating disk, place 12 test tubes, in test tube, put into respectively standard calcium carbonate 0.05g, 0.1g, 0.2g, 0.3g, 0.4g etc., put into load weighted soil sample in other test tubes;
(5) rotate rotating disk, make standard carbon element calcium test tube transposition under buret, fill in rubber stopper, open buret, splash into excessive dilute hydrochloric acid solution, treat that gas no longer increases, record numerical value on barometer, so repeatedly record standard calcium carbonate produces the barometer pointer position of carbon dioxide, draws master scale, represents calcium carbonate content;
(6) rotate rotating disk, excessive hydrochloric acid solution is reacted with the soil sample to be measured in each test tube, the calcium carbonate content value of observational record barometer pointer position, can carry out direct reading.
The method of wherein said step (4) (5) is as follows:
On the balance of 1% sensitivity, take the pure calcium carbonate 0.05g of dry analysis, 0.1g, 0.2g, 0.3g, is not greater than 0.2g if 0.4g(takes calcium carbonate quantity with 50mL buret collection gas), record respectively 0.05g in the barometer pointer offset position of aforesaid operations step measurements, 0.1g, 0.2g, 0.3g, 0.4g.On dial plate, draw working curve.
The method of described step (6) is as follows:
Content (the gkg of soil calcium carbonate
-1)=m
1/ m × 1000
In formula: m
1---on dial plate shown in the quality (g) of calcium carbonate;
M---dry quality of soil sample (g).
Claims (1)
1. a device for Fast Measurement carbon in soil acid calcium content, is characterized in that, it comprises: titration stand, the buret that holds HCl solution, water check valve two hole rubber stoppers, test tube, rotating disk, connection rubber tube, plate rail and aneroid barometer; Described buret is fixed on titration stand, the buret mouth of pipe is connected with the water check valve of controlling HCl solution flow rate, one group of test tube inserts respectively in the rotating disk being fixed on plate rail, in vitro place testing soil, the mouth of pipe of test tube is provided with two hole rubber stoppers, two hole rubber stoppers are the in succession conduit of buret below of a hole wherein, and another hole is connected with aneroid barometer by the proofed sleeve of carrying gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420082826.2U CN203705296U (en) | 2014-02-26 | 2014-02-26 | Device for rapidly measuring content of calcium carbonate in soil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420082826.2U CN203705296U (en) | 2014-02-26 | 2014-02-26 | Device for rapidly measuring content of calcium carbonate in soil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203705296U true CN203705296U (en) | 2014-07-09 |
Family
ID=51055717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420082826.2U Expired - Fee Related CN203705296U (en) | 2014-02-26 | 2014-02-26 | Device for rapidly measuring content of calcium carbonate in soil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203705296U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105486606A (en) * | 2016-01-28 | 2016-04-13 | 海安县石油科研仪器有限公司 | Carbonate content tester |
| CN106568810A (en) * | 2016-10-12 | 2017-04-19 | 福建农林大学 | Method and apparatus for rapidly determining calcium carbonate content in paper, and applications of method |
-
2014
- 2014-02-26 CN CN201420082826.2U patent/CN203705296U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105486606A (en) * | 2016-01-28 | 2016-04-13 | 海安县石油科研仪器有限公司 | Carbonate content tester |
| CN106568810A (en) * | 2016-10-12 | 2017-04-19 | 福建农林大学 | Method and apparatus for rapidly determining calcium carbonate content in paper, and applications of method |
| CN106568810B (en) * | 2016-10-12 | 2019-09-06 | 福建农林大学 | The method and device thereof and application of calcium carbonate content in a kind of quick measurement page |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140709 Termination date: 20150226 |
|
| EXPY | Termination of patent right or utility model |