CN201215557Y - On-line detection device for CaCO3 content in absorbing tower pulp of limestone plaster desulfurizing system - Google Patents
On-line detection device for CaCO3 content in absorbing tower pulp of limestone plaster desulfurizing system Download PDFInfo
- Publication number
- CN201215557Y CN201215557Y CNU2008200778094U CN200820077809U CN201215557Y CN 201215557 Y CN201215557 Y CN 201215557Y CN U2008200778094 U CNU2008200778094 U CN U2008200778094U CN 200820077809 U CN200820077809 U CN 200820077809U CN 201215557 Y CN201215557 Y CN 201215557Y
- Authority
- CN
- China
- Prior art keywords
- reaction vessel
- content
- caco3
- reaction container
- slurry
- 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.)
- Expired - Fee Related
Links
- 235000019738 Limestone Nutrition 0.000 title claims abstract description 8
- 239000006028 limestone Substances 0.000 title claims abstract description 8
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 title abstract 16
- 229910000019 calcium carbonate Inorganic materials 0.000 title abstract 8
- 235000010216 calcium carbonate Nutrition 0.000 title abstract 8
- 230000003009 desulfurizing effect Effects 0.000 title abstract 3
- 238000001514 detection method Methods 0.000 title 1
- 239000011505 plaster Substances 0.000 title 1
- 238000006243 chemical reaction Methods 0.000 claims abstract description 43
- 238000010521 absorption reaction Methods 0.000 claims abstract description 37
- 239000007788 liquid Substances 0.000 claims abstract description 37
- 239000002002 slurry Substances 0.000 claims abstract description 21
- 239000002699 waste material Substances 0.000 claims abstract description 12
- 239000010440 gypsum Substances 0.000 claims abstract description 10
- 229910052602 gypsum Inorganic materials 0.000 claims abstract description 10
- 238000005070 sampling Methods 0.000 claims abstract description 10
- 238000003756 stirring Methods 0.000 claims abstract description 7
- 230000037452 priming Effects 0.000 claims description 12
- 238000007599 discharging Methods 0.000 claims description 11
- 238000006477 desulfuration reaction Methods 0.000 claims description 9
- 230000023556 desulfurization Effects 0.000 claims description 7
- 238000005516 engineering process Methods 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 239000002253 acid Substances 0.000 abstract description 10
- 238000012360 testing method Methods 0.000 abstract description 9
- 239000013505 freshwater Substances 0.000 description 6
- 238000004458 analytical method Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 239000012071 phase Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000001186 cumulative effect Effects 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000006101 laboratory sample Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Landscapes
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
- Treating Waste Gases (AREA)
Abstract
The utility model relates to an online detecting device for CaCO3 content in absorbing tower slurry of a limestone gypsum desulfurizing system, which comprises a reaction container, an absorption liquid suction device which communicates an absorbing tower sampling system and the reaction container, an acid feeding device and a watering device which are communicated with the reaction container, a stirring device which is arranged in the reaction container, a CO2 content testing device which is arranged on the upper end of the reaction container and a waste liquor drain valve which is arranged on the lower end of the reaction container. The utility model can test the CaCO3 content in the absorbing tower slurry in an accurate, reliable and real-time way, which is convenient and practicable, is convenient for timely adjusting the supply quantity of CaCO3 slurry through controlling the CaCO3 content in slurry, prevents impure gypsum quality caused by excessive CaCO3 or desulfurizing efficiency reduction caused by insufficient CaCO3 supply, and makes the CaCO3 content in slurry keep in an optimum level.
Description
Technical field
The utility model relates to CaCO in a kind of lime stone desulfurization of gypsum system absorption tower slurries
3The on-line measuring device of content.
Background technology
Along with constantly popularizing of wet method lime stone gypsum flue gas desulfurization technology, how when guaranteeing to obtain desirable desulfuration efficiency, to guarantee to obtain high-quality gypsum, the performance driving economy that improves desulphurization system more and more draws attention.Because the variation of coal-fired sulfur instability and unit load causes sulfur dioxide in flue gas content instability, the used up CaCO of desulfurization
3Amount also constantly changes thereupon, need be according to existing C aCO in the slurries
3Content is in time adjusted CaCO
3The addition of slurries.This just needs real-time online to determine CaCO in the slurries
3Content.
CaCO in the present domestic lime stone desulfurization of gypsum system absorption tower slurries
3Determination on content is by regularly taking a sample from the slurries of absorption tower, carry out analytical test then in the laboratory, because there is certain lag-effect in lab analysis chemical examination work, and the cycle of laboratory sample analysis chemical examination is longer, can not in time provide testing result, therefore also just can not detect the CaCO in the slurries in real time
3Content.
The present domestic CaCO in the lime stone desulfurization of gypsum system absorption tower slurries that still do not have
3The on-line measuring device of content.
Summary of the invention
Technical problem to be solved in the utility model provide a kind of can be accurate, reliable, real-time test out CaCO in the slurries of absorption tower
3The on-line measuring device of content.
The utility model adopts following technical scheme:
The utility model comprises reaction vessel, be communicated with the absorption liquid aspirator of absorption tower sampling system and reaction vessel, be communicated with adding sour device and priming apparatus, be arranged on stirring apparatus in the reaction vessel, be arranged on the CO of reaction vessel upper end of reaction vessel
2Content measuring device and the discharging of waste liquid valve that is arranged on the reaction vessel lower end, the inlet end of described absorption liquid aspirator is connected with the absorption tower sampling system, the endpiece of absorption liquid aspirator is connected with reaction vessel, the inlet end that adds sour device is connected with sour storage tank, the endpiece that adds sour device is connected with reaction vessel, and the inlet end of priming apparatus links to each other with the technology water pot, and the endpiece of priming apparatus is connected with reaction vessel, reaction vessel is a closed container, CO
2The sampling head of content measuring device inserts the gas phase position of reaction vessel.
The utility model good effect is as follows:
The utility model can be accurate, reliable, real-time test out CaCO in the slurries of absorption tower
3Content, convenient and practical.By CaCO in the timely grasp slurries
3Content is convenient in time adjust CaCO
3The quantity delivered of slurries prevents because CaCO
3The excessive impure or CaCO of gypsum quality that causes
3The desulfuration efficiency that the quantity delivered deficiency causes reduces, and makes CaCO in the slurries
3Content remains on optimum level.
Description of drawings
Accompanying drawing is the utility model structural representation
In the accompanying drawings: 1 absorption liquid aspirator, 2 adds sour device, 3 priming apparatus, 4 stirring apparatuss, 5 reaction vessels, 6 CO
2Content measuring device, 7, discharging of waste liquid valve.
Embodiment
The utility model comprises absorption liquid aspirator 1, adds sour device 2, priming apparatus 3, stirring apparatus 4, reaction vessel 5, CO
2Content measuring device 6 and discharging of waste liquid valve 7.
The inlet end of the utility model absorption liquid aspirator 1 is connected with the absorption tower sampling system, the endpiece of absorption liquid aspirator 1 is connected with reaction vessel 5, determine absorption liquid suction period and aspiration according to service requirement, the inlet end that adds sour device 2 is connected with sour storage tank, the endpiece that adds sour device 2 is connected with reaction vessel 5, according to the CaCO in the absorption liquid
3Content determines to add sour amount, adds the acid amount and is greater than and whole CaCO
3React required minimum, it is excessive adding, the inlet end of priming apparatus 3 is connected with the technology water pot, the endpiece of priming apparatus 3 is connected with reaction vessel 5, the stirring vane of stirring apparatus 4 inserts the liquid phase part of reaction vessel 5, be used for absorption liquid is quick and completely mixed and prevents that slurries precipitations from causing line clogging with sour, reaction vessel 5 is a closed container.CO
2The sampling head of content measuring device 6 inserts the gas phase position of reaction vessel 5 and immobilizes, and discharging of waste liquid valve 7 is installed in the bottom of reaction vessel 5.In order to prevent acid corrosion, acid resistant coating to be arranged or directly use acidproof material making at container 5 inwalls and mixing arm, discharging of waste liquid valve 7.Absorption liquid volume, the acid of interpolation and the cumulative volume of water of each suction will keep accurately constant, keep invariable respectively with the cumulative volume of guaranteeing liquid phase in the container, gas phase part; The cycle that add acid, adds water is identical with the absorption liquid suction period, and addition sequence is absorption liquid, fresh water (FW) and acid, will close corresponding dosing or suction switch immediately after whenever adding a kind of solution, keeps reaction vessel 5 to be in air-tight state; CO
2The stationkeeping of the sampling head of content measuring device 6 is constant; CO
2Determination on content can be selected method of testing present maturation or national Specification for use.Priming apparatus is used to dilute absorption liquid and wash reaction vessels; The discharging of waste liquid valve is used to discharge the absorption liquid after reaction finishes, CO to be recorded
2After stable content was constant, the record reading calculated CaCO in the absorption liquid according to this reading
3Content; Discharging of waste liquid after by discharging of waste liquid valve 7 test being finished then is clean, and outside discharging of waste liquid valve 7 was removed when discharging waste liquid and cleaning fluid, all the other times all were in closed condition.After adding the fresh water (FW) cleaning down by priming apparatus 3 at last, promptly finish the test of one-period.Can enter next test period rapidly.Hydrochloric acid or sulfuric acid are used in acid usually.
Because absorption liquid is for containing the pulpous state liquid of solid, liquid simultaneously, the line clogging in order to prevent to take place when static need make absorption liquid always keep flow state by stirrer.When operation stops, container and pipeline inside being cleaned up with fresh water (FW).
The reaction principle of this device foundation is: can be CaCO with the principal ingredient of acid reaction in the absorption liquid
3CaSO with minute quantity
3, the chemical equation of itself and acid reaction is:
CaCO
3+2HCL→CaCL
2+H
2O+CO
2↑
CaCO
3+H
2SO
4→CaSO
4+H
2O+CO
2↑
CaSO
3+2HCL→CaCL
2+H
2O+SO
2↑
CaSO
3+H
2SO
4→CaSO
4+H
2O+SO
2↑
Because CaSO in the absorption liquid
3Content very little, the SO of generation
2Can be to CO
2Test produces to be disturbed.
Claims (1)
1, CaCO in a kind of lime stone desulfurization of gypsum system absorption tower slurries
3The on-line measuring device of content, it is characterized in that it comprise reaction vessel (5), be communicated with absorption tower sampling system and reaction vessel (5) absorption liquid aspirator (1), be communicated with adding sour device (2) and priming apparatus (3), be arranged on stirring apparatus (4) in the reaction vessel (5), be arranged on the CO on the reaction vessel (5) of reaction vessel (5)
2Content measuring device (6) and the discharging of waste liquid valve (7) that is arranged on reaction vessel (5) lower end, the inlet end of described absorption liquid aspirator (1) is connected with the absorption tower sampling system, the endpiece of absorption liquid aspirator (1) is connected with reaction vessel (5), the inlet end that adds sour device (2) is connected with sour storage tank, the endpiece that adds sour device (2) is connected with reaction vessel (5), the inlet end of priming apparatus (3) links to each other with the technology water pot, the endpiece of priming apparatus (3) is connected with reaction vessel (5), reaction vessel (5) is a closed container, CO
2The sampling head of content measuring device (6) inserts the gas phase position of reaction vessel (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200778094U CN201215557Y (en) | 2008-07-08 | 2008-07-08 | On-line detection device for CaCO3 content in absorbing tower pulp of limestone plaster desulfurizing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200778094U CN201215557Y (en) | 2008-07-08 | 2008-07-08 | On-line detection device for CaCO3 content in absorbing tower pulp of limestone plaster desulfurizing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201215557Y true CN201215557Y (en) | 2009-04-01 |
Family
ID=40520761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200778094U Expired - Fee Related CN201215557Y (en) | 2008-07-08 | 2008-07-08 | On-line detection device for CaCO3 content in absorbing tower pulp of limestone plaster desulfurizing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201215557Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103278417A (en) * | 2013-06-08 | 2013-09-04 | 国家电网公司 | Method and apparatus for testing carbonate content in gypsum desulfurization system slurry |
| CN111855604A (en) * | 2020-07-16 | 2020-10-30 | 济南裕兴化工有限责任公司 | Method for measuring conversion rate of limestone slurry in wet flue gas desulfurization |
-
2008
- 2008-07-08 CN CNU2008200778094U patent/CN201215557Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103278417A (en) * | 2013-06-08 | 2013-09-04 | 国家电网公司 | Method and apparatus for testing carbonate content in gypsum desulfurization system slurry |
| CN111855604A (en) * | 2020-07-16 | 2020-10-30 | 济南裕兴化工有限责任公司 | Method for measuring conversion rate of limestone slurry in wet flue gas desulfurization |
| CN111855604B (en) * | 2020-07-16 | 2023-03-14 | 济南裕兴化工有限责任公司 | Method for measuring conversion rate of limestone slurry in wet flue gas desulfurization |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: HEBEI ELECTRIC POWER CORPORATION ELECTRIC POWER RE Free format text: FORMER OWNER: HEBEI ELECTRIC POWER RESEARCH INSTITUTE Effective date: 20130320 Owner name: STATE ELECTRIC NET CROP. HEBEI ELECTRIC POWER CONS Effective date: 20130320 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20130320 Address after: 050021 Shijiazhuang Province, Yuhua Province Sports street, South Street, No. 238, No. Patentee after: Electric Power Research Institute of Hebei Electric Power Corporation Patentee after: State Grid Corporation of China Patentee after: Hebei Electric Power Construction & Adjustment Research Institute Address before: 050021 Hebei city of Shijiazhuang Province Sports South Street No. 238 Hebei Electric Power Research Institute Patentee before: Hebei Electric Power Research Institute |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090401 Termination date: 20150708 |
|
| EXPY | Termination of patent right or utility model |