CN101164665A - Desulfurizing slurry-producing device containing limestone slurry densimeter - Google Patents
Desulfurizing slurry-producing device containing limestone slurry densimeter Download PDFInfo
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- CN101164665A CN101164665A CNA2007101203959A CN200710120395A CN101164665A CN 101164665 A CN101164665 A CN 101164665A CN A2007101203959 A CNA2007101203959 A CN A2007101203959A CN 200710120395 A CN200710120395 A CN 200710120395A CN 101164665 A CN101164665 A CN 101164665A
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- Prior art keywords
- lime stone
- stone slurry
- caliber
- slurry
- densitometer
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Links
- 239000002002 slurry Substances 0.000 title claims abstract description 113
- 235000019738 Limestone Nutrition 0.000 title claims abstract description 110
- 239000006028 limestone Substances 0.000 title claims abstract description 110
- 230000003009 desulfurizing effect Effects 0.000 title 1
- 238000006477 desulfuration reaction Methods 0.000 claims abstract description 20
- 230000023556 desulfurization Effects 0.000 claims abstract description 19
- 230000005484 gravity Effects 0.000 claims description 32
- 238000004537 pulping Methods 0.000 claims description 17
- 210000002966 serum Anatomy 0.000 claims description 9
- 239000004575 stone Substances 0.000 claims description 9
- 239000003546 flue gas Substances 0.000 claims description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 2
- 238000005259 measurement Methods 0.000 abstract description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000010440 gypsum Substances 0.000 description 3
- 229910052602 gypsum Inorganic materials 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000013505 freshwater Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000005422 blasting Methods 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 210000005239 tubule Anatomy 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
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Abstract
The present invention relates to a desulfurization slurry-making equipment containing limestone slurry densimeter. Said equipment includes limeslone slurry spiral-flow station overflow tank, limestone slurry tank and limestone slurry self-flowing pipeline connected with limestone slurry spiral-flow station overflow tank and limestone slurry tank. In the described limestone slurry self-flowing pipeline a branch pipeline is arranged, another end of said branch pipeline is directly communicated with the limestone slurry tank, on the described branch pipeline a limestone slurry densimeter is set, the pipe diameter of the described limestone slurry densimeter is less than pipe diameter of the described limestone slurry self-flowing pipeline. Said equipment is high in measurement accuracy and can economize cost.
Description
Technical field
The present invention relates to a kind of desulfurization pulping device of limy stone serum density meter.
Background technology
Be in the power generation process of main fuel with the coal, owing to coal directly burning emit and contain a large amount of SO
2Flue gas, often adopt wet process of FGD to remove SO in the flue gas
2This wherein uses lime stone (CaCO
3) and SO
2Reaction generates CaSO
3, and make CaSO by blasting air
3Oxidized generation gypsum (CaSO
42H
2O) be called as the limestone/gypsum method.In this technology, first usually just limestone particle and water are milled into lime stone slurry together, and promptly lime stone is sent in the fume desulfurating absorption tower through the processing of desulfurization pulping device earlier again and reacted.
In this desulfurization pulping device, earlier limestone particle and filtrate water (or fresh water (FW)) are sent into ball mill barrel, by ball mill limestone particle is pushed and is milled into slurries.The slurries that form carry out thickness through cyclone through hydraulic cyclone to be separated, the underflow underflow is formed on the bottom that the bulky grain in the slurries is split into cyclone, get back to ball mill from inlet and milled once more, the granule in the slurries then overflows from the top and forms thin pulp to enter the lime stone slurry case standby.
Quality as the lime stone slurry of key reaction thing is extremely important for desulfuration efficiency and formed gypsum quality.Lime stone slurry must satisfy certain density requirements.Density is too high easily to cause lime stone slurry pipe wear, obstruction, also totally unfavorable to agitator in the lime stone slurry case and line with rubber.Density is crossed the low absorption tower that may occur and is reached maximum for the slurry control valve, and the lime stone amount does not still satisfy situation about requiring, thereby influences reaction efficiency and product quality.It is 1210～1230kg/m that the desulfurization design generally requires lime stone slurry density
3, corresponding concentration is generally about 20～30%.
Therefore, need monitor lime stone slurry density in the desulfurization pulping device, this monitoring is normally installed densitometer on the lime stone slurry gravity line.Traditional design is directly densitometer to be installed on the lime stone slurry gravity line.Fig. 1 is the schematic diagram of the desulfurization pulping device of this limy stone serum density meter.This device comprises lime stone slurry rotational flow station spill box 1, lime stone slurry case 6 and is connected lime stone slurry rotational flow station spill box and the lime stone slurry pipe gravity flow pipeline 2 of lime stone slurry case, one lime stone slurry densitometer 5 is set on the lime stone slurry pipe gravity flow pipeline, the caliber of described lime stone slurry densitometer 5 equates with the caliber of described lime stone slurry pipe gravity flow pipeline 2, for example routine all is 200mm (DN200, down together).
This desulfurization pulping device has three shortcomings: (1) is because densitometric throttling is unfavorable for flowing naturally of lime stone slurry; (2) the pipeline slurries flow and can not be full of whole pipeline fully sometimes, cause to measure and are forbidden; (3) present lime stone slurry gravity line caliber is DN200, therefore also must select the densitometer of same caliber size for use, and the big more expense of densitometer caliber is high more.
Summary of the invention
The object of the present invention is to provide a kind of desulfurization pulping device of limy stone serum density meter,, improve densitometric certainty of measurement, solve the blockage problem of lime stone gravity line throttling, and reduce the technology cost to overcome deficiency of the prior art.
For achieving the above object, the present invention proposes a kind of desulfurization pulping device of novel limy stone serum density meter, this device comprises lime stone slurry rotational flow station spill box, the lime stone slurry case, with the lime stone slurry pipe gravity flow pipeline that is connected lime stone slurry rotational flow station spill box and lime stone slurry case, arrange a lateral at described lime stone slurry pipe gravity flow pipeline, the described lateral other end directly communicates with described lime stone slurry case, one lime stone slurry densitometer is set on described lateral, and the densitometric caliber of described lime stone slurry is less than the caliber of described lime stone slurry pipe gravity flow pipeline.
In embodiment preferred of the present invention, described lateral enters the lime stone slurry case with the direction that is 30 °～90 ° of angles with horizontal direction; At one more in the embodiment preferred, described lateral enters the lime stone slurry case with vertical direction.
In embodiment preferred of the present invention, the densitometric caliber ratio of described lime stone slurry pipe gravity flow pipeline caliber and lime stone slurry is 2～6: 1; At one more in the embodiment preferred, the densitometric caliber ratio of described lime stone slurry pipe gravity flow pipeline caliber and lime stone slurry is 3: 1; At one more in the embodiment preferred, the densitometric caliber ratio of described lime stone slurry pipe gravity flow pipeline caliber and lime stone slurry is 4: 1.
The present invention compared with prior art has following advantage: do not have restricting elements such as densitometer on (1) lime stone slurry gravity flow trunk line, it is unimpeded to guarantee that slurries flow naturally; (2) select the densitometer of little caliber for use, for example, when lime stone slurry gravity flow trunk line is DN200, can select the tubule footpath densitometer of DN50 for use, can guarantee fully that slurry stream is in the full packages state when densitometer, guarantee certainty of measurement; (3) owing to selected the densitometer of little caliber for use, expense reduces greatly, for example, and than the DN200 densitometer, surplus the DN50 densitometer can save 100,000 yuan.
Description of drawings
Fig. 1 is the schematic diagram of desulfurization pulping device of the limy stone serum density meter of prior art.
Fig. 2 is the schematic diagram of the desulfurization pulping device of limy stone serum density meter of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is described in more detail.
The present invention includes lime stone slurry rotational flow station spill box 1, lime stone slurry case 6 and be connected the lime stone slurry pipe gravity flow pipeline 2 of lime stone slurry rotational flow station spill box 1 and lime stone slurry case 6, arrange a lateral 7 at described lime stone slurry pipe gravity flow pipeline 2, described lateral 7 other ends directly communicate with described lime stone slurry case 6, one lime stone slurry densitometer 5 is set on described lateral 7, and the caliber of described lime stone slurry densitometer 5 is less than the caliber of described lime stone slurry pipe gravity flow pipeline 2.
In embodiment preferred of the present invention, described lateral 7 enters lime stone slurry case 6 with the direction that is 30 °～90 ° of angles with horizontal direction; At one more in the embodiment preferred, described lateral 7 enters lime stone slurry case 6 with vertical direction.
In embodiment preferred of the present invention, the caliber ratio of described lime stone slurry pipe gravity flow pipeline 2 calibers and lime stone slurry densitometer 5 is 2～6: 1; At one more in the embodiment preferred, the caliber ratio of described lime stone slurry pipe gravity flow pipeline 2 calibers and lime stone slurry densitometer 5 is 3: 1; At one more in the embodiment preferred, the caliber ratio of described lime stone slurry pipe gravity flow pipeline 2 calibers and lime stone slurry densitometer 5 is 4: 1.
Embodiment
Fig. 2 is a specific embodiments of the desulfurization pulping device of limy stone serum density meter of the present invention.
Wherein, lime stone slurry pipe gravity flow pipeline 2 is DN200, after it is drawn from lime stone slurry densitometer 5, downward-sloping extension finally changes direction and inserts lime stone slurry case 6 straight down, and lime stone slurry flows and enters lime stone slurry case 6 to lime stone slurry case 6 from lime stone slurry rotational flow station spill box 1 therein.In the 2 downward-sloping extensions of lime stone slurry pipe gravity flow pipeline, and change on the upstream of locating straight down at it and to arrange lateral 7, this lateral 7 vertically inserts lime stone slurry casees 6.On lateral 7, set gradually densitometer pipeline concentric reducer 3, the disconnected door 4 of densitometer pipeline maintenance pipe, DN50 densitometer 5.
In this specific embodiments, owing to densitometer is not set at lime stone slurry pipe gravity flow pipeline 2, so pipeline is unimpeded, most of lime stone slurry relies on the gravity effect to flow into lime stone slurry case 6 along lime stone slurry pipe gravity flow pipeline 2; Because lateral 7 vertically inserts lime stone slurry casees 6, guarantee to greatest extent that slurries flow and be full of whole pipeline fully, can improve densitometric certainty of measurement; One DN50 densitometer is set on lateral 7, and the DN50 densitometer can be reduced expenses surplus in the of 100,000 yuan than DN200 densitometer.
Be necessary to be pointed out that at this above specific embodiment only is used for the present invention is further specified; can not be interpreted as limiting the scope of the invention; those skilled in the art can content make some nonessential improvement and adjustment to the present invention according to the present invention, but all falls within the scope of protection of the present invention.
Claims (6)
1. the desulfurization pulping device of a limy stone serum density meter, comprise lime stone slurry rotational flow station spill box (1), lime stone slurry case (6), with the lime stone slurry pipe gravity flow pipeline (2) that is connected lime stone slurry rotational flow station spill box (1) and lime stone slurry case (6), it is characterized in that, arrange a lateral (7) at described lime stone slurry pipe gravity flow pipeline (2), described lateral (7) other end directly communicates with described lime stone slurry case (6), one lime stone slurry densitometer (5) is set on described lateral (7), and the caliber of described lime stone slurry densitometer (5) is less than the caliber of described lime stone slurry pipe gravity flow pipeline (2).
2. desulfurization pulping device according to claim 1 is characterized in that, described lateral (7) enters lime stone slurry case (6) with the direction that is 30 °～90 ° of angles with horizontal direction.
3. wet flue gas desulfurizer according to claim 2 is characterized in that, described lateral (7) enters lime stone slurry case (6) with vertical direction.
4. according to the described desulfurization pulping device of arbitrary claim in the claim 1～3, it is characterized in that the caliber ratio of described lime stone slurry pipe gravity flow pipeline (2) caliber and lime stone slurry densitometer (5) is 2～6: 1.
5. desulfurization pulping device according to claim 4 is characterized in that, the caliber ratio of described lime stone slurry pipe gravity flow pipeline (2) caliber and lime stone slurry densitometer (5) is 3: 1.
6. desulfurization pulping device according to claim 4 is characterized in that, the caliber ratio of described lime stone slurry pipe gravity flow pipeline (2) caliber and lime stone slurry densitometer (5) is 4: 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101203959A CN100506359C (en) | 2007-08-17 | 2007-08-17 | Desulfurizing slurry-producing device containing limestone slurry densimeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101203959A CN100506359C (en) | 2007-08-17 | 2007-08-17 | Desulfurizing slurry-producing device containing limestone slurry densimeter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101164665A true CN101164665A (en) | 2008-04-23 |
| CN100506359C CN100506359C (en) | 2009-07-01 |
Family
ID=39333601
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007101203959A Active CN100506359C (en) | 2007-08-17 | 2007-08-17 | Desulfurizing slurry-producing device containing limestone slurry densimeter |
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|---|---|
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107096371A (en) * | 2017-06-30 | 2017-08-29 | 大唐环境产业集团股份有限公司 | The lime stone slurry supply system and adjusting method of a kind of wide Load Regulation |
| CN112999857A (en) * | 2021-02-24 | 2021-06-22 | 大唐环境产业集团股份有限公司 | Regulation and control method and regulation and control system for wide-load limestone slurry supply system |
-
2007
- 2007-08-17 CN CNB2007101203959A patent/CN100506359C/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107096371A (en) * | 2017-06-30 | 2017-08-29 | 大唐环境产业集团股份有限公司 | The lime stone slurry supply system and adjusting method of a kind of wide Load Regulation |
| CN107096371B (en) * | 2017-06-30 | 2020-04-03 | 大唐环境产业集团股份有限公司 | Wide-load-adjustable limestone slurry supply system and adjusting method |
| CN112999857A (en) * | 2021-02-24 | 2021-06-22 | 大唐环境产业集团股份有限公司 | Regulation and control method and regulation and control system for wide-load limestone slurry supply system |
| CN112999857B (en) * | 2021-02-24 | 2021-10-26 | 大唐环境产业集团股份有限公司 | Regulation and control method and regulation and control system for wide-load limestone slurry supply system |
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| Publication number | Publication date |
|---|---|
| CN100506359C (en) | 2009-07-01 |
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Effective date of registration: 20090612 Address after: Beijing City, Dongcheng District No. 16 Andrew intercontinental building 4 Zip Code: 100011 Co-patentee after: Shenhua Guohua (Beijing) Electric Power Research Institute Co., Ltd. Patentee after: China Shenhua Energy Co Address before: Beijing City, Dongcheng District No. 16 Andrew intercontinental building 4 Zip Code: 100011 Co-patentee before: Beijing Guohua Electric Power Engineering Technology Co., Ltd. Patentee before: China Shenhua Energy Co |