CN104090066A - Device and method for measuring CaO content of quicklime - Google Patents
Device and method for measuring CaO content of quicklime Download PDFInfo
- Publication number
- CN104090066A CN104090066A CN201410339357.2A CN201410339357A CN104090066A CN 104090066 A CN104090066 A CN 104090066A CN 201410339357 A CN201410339357 A CN 201410339357A CN 104090066 A CN104090066 A CN 104090066A
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- CN
- China
- Prior art keywords
- lime
- reaction
- calcium oxide
- water
- content
- 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.)
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- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 title claims abstract description 72
- 239000000292 calcium oxide Substances 0.000 title claims abstract description 44
- 235000012255 calcium oxide Nutrition 0.000 title claims abstract description 44
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000006243 chemical reaction Methods 0.000 claims abstract description 30
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims abstract description 29
- 235000011941 Tilia x europaea Nutrition 0.000 claims abstract description 29
- 239000004571 lime Substances 0.000 claims abstract description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 28
- 230000029087 digestion Effects 0.000 claims abstract description 19
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 238000003860 storage Methods 0.000 claims abstract description 10
- 239000000920 calcium hydroxide Substances 0.000 claims description 15
- 235000011116 calcium hydroxide Nutrition 0.000 claims description 15
- 238000003756 stirring Methods 0.000 claims description 6
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 5
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims description 5
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims description 5
- 239000010962 carbon steel Substances 0.000 claims description 5
- 238000002479 acid--base titration Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 3
- 238000005303 weighing Methods 0.000 claims description 3
- 239000013505 freshwater Substances 0.000 claims description 2
- 150000003839 salts Chemical class 0.000 claims description 2
- 238000005070 sampling Methods 0.000 claims description 2
- 238000009991 scouring Methods 0.000 claims description 2
- 239000004575 stone Substances 0.000 claims description 2
- 239000008399 tap water Substances 0.000 claims description 2
- 235000020679 tap water Nutrition 0.000 claims description 2
- 238000004448 titration Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000002474 experimental method Methods 0.000 abstract description 2
- 239000008267 milk Substances 0.000 abstract description 2
- 210000004080 milk Anatomy 0.000 abstract description 2
- 235000013336 milk Nutrition 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract description 2
- 239000004570 mortar (masonry) Substances 0.000 abstract 3
- 238000004458 analytical method Methods 0.000 description 6
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 4
- 229910052791 calcium Inorganic materials 0.000 description 4
- 239000011575 calcium Substances 0.000 description 4
- 230000003647 oxidation Effects 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 4
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 description 2
- 238000007127 saponification reaction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000019621 digestibility Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000002133 sample digestion Methods 0.000 description 1
Landscapes
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Abstract
The invention belongs to the field of chemical experiment test, and in particular relates to a device and a method for measuring the effective calcium oxide content of quicklime. The device for measuring the effective calcium oxide content of the quicklime comprises a quantitative water storage barrel, a lime reaction digestion barrel, a skim strainer, a mortar barrel and a stirrer. The device is characterized in that a valve for controlling the quantity of water flowing from the water storage barrel to the reaction digestion barrel is arranged on the quantitative water storage barrel; the lime reaction digestion barrel is communicated with the mortar barrel through a pipeline, the skim strainer is arranged on the pipeline, and the stirrer is arranged in the mortar barrel. The device and the method have the advantages that the device is simple in structure and low in cost, and can be used for accurately and analyzing the concentration of the lime; stage digestion is adopted, so that the reaction is sufficient, and data is determined according to the concentration of lime milk; the device and the method meet the production requirements, and better reflect the real digestion condition of the lime in production.
Description
Technical field
The invention belongs to chemical experiment field tests, particularly, relate to a kind of device and method of measuring the content of free calcium oxide in unslaked lime.
Background technology
Propylene oxide by chlorohydrination device saponification calcium oxide, unslaked lime is propylene oxide feedstock, device is after quicklime slaking, to generate calcium hydroxide content while using, so need to determine effective calcium oxide content in unslaked lime.
At present, what in industry inner analysis unslaked lime, the method for calcium oxide content generally adopted is that water directly rinses the method that digests-weigh: lime is poured in digester or screen cloth, with circulating water digestion, to till no longer including lime reaction, obtain residual residue, with divided by gross weight, draw digestibility.The method has the following disadvantages:
(1), in flushing process, meeting, because the water yield is excessive be caused a large amount of material powder and become and can digest part compared with granule, cause analysis result higher, loses the directive significance to producing.
(2), a lot of details (as the amount of water etc.) can not quantize, random large;
(3), directly rinse that the method for weighing obtains be can sample digestion in unslaked lime content, be not the content that can generate the efficient oxidation calcium of calcium hydroxide, and actual production process need to be reacted the amount of the efficient oxidation calcium of production;
Summary of the invention
For overcoming the defect of prior art, the invention provides a kind of unslaked lime the efficient oxidation calcium analytical equipment; Classic method is analyzed to lime slaking rate and change the efficient oxidation calcium that analysis can participate in reaction into, adopt raw material unslaked lime analogue means digester in digestion reactor of a certain amount of water and known quantity, obtain certain density milk of lime, by the method for acid base titration, determine the concentration of calcium hydroxide in milk of lime; Then by computing formula, obtain can participating in the unslaked lime of known quantity the active principle content of saponification.
For achieving the above object, the present invention adopts following proposal:
The device of measuring the content of free calcium oxide in unslaked lime, comprising: quantitative water storage is disclosed, lime reaction digests bucket, skim strainer, hod, stirrer; Quantitative water storage is disclosed and is provided with valve, controls the amount that water butt flows into water in lime reaction digestion bucket; Lime reaction digestion bucket by carbon steel pipe line and hod together with, carbon steel pipe line is provided with skim strainer, is provided with stirrer in hod.
Gradation stage digestion, after allowing lime fully react, replaces unslaked lime content by milk of lime content analysis.
With respect to prior art, the present invention has following advantage: simple in structure, with low cost, can accurate analysis the method for lime concentration; Stage digestion, sufficient reacting, data based lime milk concentration is determined; Suit Production requirement, in more approaching production, lime digests situation really.
Accompanying drawing explanation
Fig. 1 is for measuring the apparatus structure schematic diagram of the content of free calcium oxide in unslaked lime;
In figure: 1, quantitative water storage is disclosed, 2, lime reaction digestion bucket, 3, skim strainer, 4, hod, 5, stirrer.
Embodiment
As shown in Figure 1, measure the device of the content of free calcium oxide in unslaked lime, comprising: quantitative water storage discloses 1, lime reaction digestion bucket 2, skim strainer 3, hod 4, stirrer 5; Quantitative water storage is disclosed 1 and is provided with valve, controls the amount that water butt flows into water in lime reaction digestion bucket 2; Lime reaction digestion bucket 2 by carbon steel pipe line and hod together with, carbon steel pipe line is provided with skim strainer, is provided with stirrer in hod.
Gradation stage digestion, after allowing lime fully react, replaces unslaked lime content by milk of lime content analysis.
Measure the method for the content of free calcium oxide in unslaked lime, adopt the device of the content of free calcium oxide in said determination unslaked lime, comprise the following steps:
(1), take the weight of " sample+container ", record data M.
(2), check in " lime reaction bucket ", whether to have foreign material and obvious lime residue, if any, remove clean;
Check that whether reaction container and dispensing valve close, if be not closed condition, have closed valve;
Check whether milk of lime screen pack is blocked or has breakage, as be blocked, dredge, if there is breakage, repair;
(3), raw material unslaked lime is poured in reaction container gently;
(4), open fresh water valve water inlet 60kg, first in reaction container, add appropriate water not have amount of lime to be as the criterion, make it in reaction container, digest the 10-15 time, winter can proper extension;
(5), in bucket, add suitable quantity of water again, point shovel is deep into reaction container bottom and stirs, open reaction container dispensing valve, with point shovel, constantly under stirring, milk of lime is being put into hod;
(6), with the calcium hydroxide adhering on the scouring stone such as remaining tap water in bucket ash bits, with point shovel, constantly under stirring, milk of lime is being put in hod;
(7), residue is shoveled in container to weighing lime-ash quality with little square spade;
(8), turn on agitator mixes rear sampling;
(9), according to 1mol/l salt acidometric titration calcium oxide content for acid base titration method, by following formula calculating:
Claims (3)
1. a device of measuring the content of free calcium oxide in unslaked lime, comprising: quantitative water storage is disclosed, lime reaction digests bucket, skim strainer, hod, stirrer; It is characterized in that: quantitative water storage is disclosed and is provided with valve, control the amount that water butt flows into water in lime reaction digestion bucket; Lime reaction digestion bucket by pipeline and hod together with, pipeline is provided with skim strainer, is provided with stirrer in hod.
2. the device of the content of free calcium oxide in mensuration unslaked lime according to claim 1, is characterized in that: pipeline is carbon steel pipe line.
3. measure a method for the content of free calcium oxide in unslaked lime, adopt the device of measuring the content of free calcium oxide in unslaked lime described in claim 1 or 2, it is characterized in that, comprise the following steps:
(1), take the weight of " sample+container ", record data M;
(2), check in " lime reaction digestion bucket ", whether to have foreign material and obvious lime residue, if any, remove clean;
Check that whether reaction container and dispensing valve close, if be not closed condition, have closed valve;
Check whether milk of lime screen pack is blocked or has breakage, as be blocked, dredge, if there is breakage, repair;
(3), raw material unslaked lime is poured in reaction container gently;
(4), open fresh water valve water inlet 60kg, first in reaction container, add appropriate water not have amount of lime to be as the criterion, make it in reaction container, digest the 10-15 time, winter can proper extension;
(5), in bucket, add suitable quantity of water again, point shovel is deep into reaction container bottom and stirs, open reaction container dispensing valve, with point shovel, constantly under stirring, milk of lime is being put into hod;
(6), with the calcium hydroxide adhering on the scouring stone such as remaining tap water in bucket ash bits, with point shovel, constantly under stirring, milk of lime is being put in hod;
(7), residue is shoveled in container to weighing lime-ash quality with little square spade;
(8), turn on agitator mixes rear sampling;
(9), according to 1mol/l salt acidometric titration calcium oxide content for acid base titration method, by following formula calculating:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410339357.2A CN104090066A (en) | 2014-07-16 | 2014-07-16 | Device and method for measuring CaO content of quicklime |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410339357.2A CN104090066A (en) | 2014-07-16 | 2014-07-16 | Device and method for measuring CaO content of quicklime |
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| Publication Number | Publication Date |
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| CN104090066A true CN104090066A (en) | 2014-10-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201410339357.2A Pending CN104090066A (en) | 2014-07-16 | 2014-07-16 | Device and method for measuring CaO content of quicklime |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105004624A (en) * | 2015-06-30 | 2015-10-28 | 国家电网公司 | Method for measuring content of calcium oxide in lime |
| CN111912695A (en) * | 2020-07-07 | 2020-11-10 | 苏州艾驰博特检测科技有限公司 | Digestion and filtration combined experimental device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05215741A (en) * | 1992-02-04 | 1993-08-24 | Mitsubishi Materials Corp | Quick quantification method for free calsium oxide of cement or clinker for cement |
| CN101201325A (en) * | 2007-11-26 | 2008-06-18 | 中电投远达环保工程有限公司 | Determination method of free calcium oxide content in quicklime |
| CN102401822A (en) * | 2010-09-07 | 2012-04-04 | 鞍钢股份有限公司 | Method for measuring free calcium oxide in slag |
| CN103760063A (en) * | 2014-02-18 | 2014-04-30 | 安颖智 | Method and device for fully-automatic testing underfiring and overfiring rate of quick lime |
-
2014
- 2014-07-16 CN CN201410339357.2A patent/CN104090066A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05215741A (en) * | 1992-02-04 | 1993-08-24 | Mitsubishi Materials Corp | Quick quantification method for free calsium oxide of cement or clinker for cement |
| CN101201325A (en) * | 2007-11-26 | 2008-06-18 | 中电投远达环保工程有限公司 | Determination method of free calcium oxide content in quicklime |
| CN102401822A (en) * | 2010-09-07 | 2012-04-04 | 鞍钢股份有限公司 | Method for measuring free calcium oxide in slag |
| CN103760063A (en) * | 2014-02-18 | 2014-04-30 | 安颖智 | Method and device for fully-automatic testing underfiring and overfiring rate of quick lime |
Non-Patent Citations (3)
| Title |
|---|
| 北京市建材矿业公司: "建筑石灰试验方法（GB1595-79）", 《建筑节能》, no. 4, 31 December 1980 (1980-12-31), pages 24 - 27 * |
| 张志伟: "固硫灰渣中游离氧化钙测试方法的影响因素研究", 《材料导报》, vol. 25, no. 7, 31 July 2011 (2011-07-31), pages 118 - 121 * |
| 毕文彦: "水泥矿物游离氧化钙含量测定方法的评价及探讨", 《混凝土》, 31 December 2008 (2008-12-31), pages 21 - 23 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105004624A (en) * | 2015-06-30 | 2015-10-28 | 国家电网公司 | Method for measuring content of calcium oxide in lime |
| CN111912695A (en) * | 2020-07-07 | 2020-11-10 | 苏州艾驰博特检测科技有限公司 | Digestion and filtration combined experimental device |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20141008 |
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| RJ01 | Rejection of invention patent application after publication |