CN201848200U - Wet magnesium oxide desulphurization device - Google Patents
Wet magnesium oxide desulphurization device Download PDFInfo
- Publication number
- CN201848200U CN201848200U CN2010202720150U CN201020272015U CN201848200U CN 201848200 U CN201848200 U CN 201848200U CN 2010202720150 U CN2010202720150 U CN 2010202720150U CN 201020272015 U CN201020272015 U CN 201020272015U CN 201848200 U CN201848200 U CN 201848200U
- Authority
- CN
- China
- Prior art keywords
- pipeline
- desulphurization
- control valve
- circulation spraying
- concentration
- 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
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- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 title claims abstract description 41
- 239000000395 magnesium oxide Substances 0.000 title claims abstract description 23
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 title abstract description 5
- 238000001816 cooling Methods 0.000 claims abstract description 8
- 230000003009 desulfurizing effect Effects 0.000 claims description 14
- 238000001514 detection method Methods 0.000 claims description 3
- 238000002425 crystallisation Methods 0.000 abstract description 4
- 230000008025 crystallization Effects 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000005507 spraying Methods 0.000 abstract 7
- 238000000034 method Methods 0.000 description 17
- 238000006477 desulfuration reaction Methods 0.000 description 12
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 10
- 230000023556 desulfurization Effects 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 7
- 239000010440 gypsum Substances 0.000 description 7
- 229910052602 gypsum Inorganic materials 0.000 description 7
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 6
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 6
- 239000011777 magnesium Substances 0.000 description 6
- 229910052749 magnesium Inorganic materials 0.000 description 6
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 5
- 239000011575 calcium Substances 0.000 description 5
- 229910052791 calcium Inorganic materials 0.000 description 5
- 229910000019 calcium carbonate Inorganic materials 0.000 description 5
- 235000019738 Limestone Nutrition 0.000 description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 4
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 4
- 239000006028 limestone Substances 0.000 description 4
- 239000011593 sulfur Substances 0.000 description 4
- 229910052717 sulfur Inorganic materials 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 3
- 239000000292 calcium oxide Substances 0.000 description 3
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 3
- 235000019341 magnesium sulphate Nutrition 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 2
- 239000000920 calcium hydroxide Substances 0.000 description 2
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 2
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 2
- 239000000347 magnesium hydroxide Substances 0.000 description 2
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 239000003317 industrial substance Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- JESHZQPNPCJVNG-UHFFFAOYSA-L magnesium;sulfite Chemical compound [Mg+2].[O-]S([O-])=O JESHZQPNPCJVNG-UHFFFAOYSA-L 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000011505 plaster Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000003389 potentiating effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 238000012958 reprocessing Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Treating Waste Gases (AREA)
Abstract
The utility model relates to a wet magnesium oxide desulphurization device, which comprises a desulphurization tower, a cooling box, a crystallization barrel and a filter. The desulphurization tower is provided with a pipeline circulation spraying system, a pipeline circulation spraying system is also arranged between the cooling box and the crystallization barrel, the two circulation spraying systems are connected through a pipeline and a control valve, the pipeline of the pipeline circulation spraying system of the desulphurization tower is provided with a concentration testing meter, and the opening and closing of the control valve can be realized based on concentration testing so as to control opening and closing of the two pipeline circulation spraying systems; and the lower part of the crystallization barrel is connected with the filter through a pipeline, and the pipeline is also provided with a control valve. Due to self circulation between the two pipeline circulation spraying systems, the production efficiency can be improved. Moreover, the opening and closing of the two pipeline circulation spraying systems can be controlled based on concentration, the desulphurization efficiency of the whole device can be further controlled. The device has high desulphurization efficiency, a low investment cost, a low operational cost, and no secondary pollution.
Description
Technical field
The utility model relates to a kind of magnesia wet desulphurization equipment.
Background technology
Magnesia wet desulphurization technology is the sulfur removal technology that a kind of maturity is only second to the calcium method, the magnesia sulfur removal technology all has very many application achievements all over the world, wherein used more than 100 project in Japan, the power station in Taiwan 95% is to use magnesium oxide method, all used on the U.S., Germany and other places in addition, and the achievement of using has been arranged in China some areas at present, but also there are very big development space in quantity, scale and technical merit.
The magnesian reserves of China are very considerable, and present explored magnesia reserves are about 16,000,000,000 tons, account for global about 80% and best in quality.Its resource mainly is distributed in provinces such as Liaoning, Shandong, Sichuan, Hebei, and wherein Liaoning accounts for 84.7% of total amount, secondly is the Laizhou, Shandong, accounts for 10% of total amount, and other mainly is in the great river, Xingtai, Gan Luoyan Mount Tai, Sichuan, Hanyuan, Gansu Su Bei, not Gai etc. ground.Therefore magnesia can be applied to the desulphurization system of power plant fully as desulfurizing agent.
Sulfur method calcium method desulfurization commonly used, calcium hydroxide is not as magnesium hydroxide hydrolysis more thorough (solubility of calcium hydroxide is lower than magnesium hydroxide), aspect chemical reactivity much larger than calcium-based desulfurizing agents such as calcium oxide, calcium carbonate, therefore desulfuration efficiency is higher than the calcium method, can reach more than 95, and the desulfuration efficiency of limestone/gypsum method only reaches about 90～95%.
Because the active potent rate height of magnesia, so magnesia has its unique advantages as desulfurization itself, and comparing with the limestone/gypsum method at the power of the overall size of the size of the structural design on absorption tower, recycle slurry liquid measure, system, equipment can be corresponding less.Therefore the investment cost of whole desulphurization system can reduce more than 30% relatively.
The principal element of decision desulphurization system operating cost is public work energy consumptions such as the consumption of desulfurizing agent and water, electricity.Magnesian molecular weight is all little a lot of than calcium carbonate and calcium oxide, and magnesium be the required magnesia weight of divalent ion so unit desulfurization be reach effect same calcium carbonate 1/3rd, be 1/2nd of NaOH.Because the doctor solution internal circulating load less than its limestone/gypsum method, therefore can significantly reduce the circulating pump power consumption.Though magnesian price is higher than the price of calcium carbonate/calcium oxide, but the SO2 magnesia consumption that removes same weight is 40% of a calcium carbonate; Therefore magnesium oxide method sulfur removal technology operating cost is lower.
The desulfurization of magnesium method is that system the equipment scaling blockage problem can not take place with respect to the sharpest edges of calcium method, can the whole desulphurization system of assurance move safely and effectively, magnesium method pH value is controlled between 6.0～6.5 simultaneously, and the equipment etching problem has also obtained solution to a certain degree under this condition.Generally speaking, the security performance of magnesium method desulfurization in actual engineering can obtain strong guarantee.And because the key reaction product of magnesium method desulfurization is a magnesium sulfite, can carries out forced oxidation easily and generate magnesium sulfate, through concentrating, crystallization, purification generate epsom salt.Be industrial chemicals such as leather, papermaking or sell as the high-quality chemical fertilizer.The epsom salt molecular weight is more than magnesian six times, so yield is the initial magnesian six times of weight that drop into, if be able to purification processes, its income can offset with the input of raw materials of magnesium oxide.If add the sulfur dioxide charges for disposing pollutants of return, the magnesia wet desulfurizing process can reach leveling of income substantially.
And common limestone/gypsum wet desulfurizing process unavoidably can produce the inferior gypsum and the gypsum of inferior quality.Because Chinese gypsum resource is abundant and best in quality, so the outlet of the low desulfurated plaster of quality has a disconcerting prospect, even needs flower energetically with its landfill or abandon, and this also just exists secondary pollution problem.For the magnesia desulfur technology, because byproduct economic benefit height, operation enterprise generally can invest comparatively perfect reprocessing facility, can accomplish the waste water and dregs zero-emission substantially.This has just solved secondary pollution problem.
So based on foregoing, magnesium method desulfur technology and equipment are introduced into domestic, and carry out autonomous design.The utility model is exactly a part of equipment being carried out autonomous innovation.
The utility model content
Based on the problems referred to above, the utility model provides a kind of magnesia wet desulphurization equipment.
The purpose of this utility model is to be achieved through the following technical solutions:
Magnesia wet desulphurization equipment, comprise desulfurizing tower, cooling casing, crystallizing tank and filter, be provided with pipeline circulated sprinkling system between desulfurizing tower self, cooling casing and the crystallizing tank, be connected with control valve by pipeline between two circulated sprinkling systems, the pipeline of the pipeline circulated sprinkling system of desulfurizing tower self is provided with concentration and detects meter, realize the switching of control valve by detection, thereby control two switchings between the pipeline circulated sprinkling system concentration; Bottom at crystallizing tank is connected to filter by pipeline, and also is provided with control valve on pipeline.
Self-loopa between two pipeline circulated sprinkling systems can improve the production efficiency of self, and by the switching between two pipeline circulated sprinkling systems of concentration control, the efficient of control entire equipment desulfurization that can be further good.This equipment desulfuration efficiency height, investment cost is few, and operating cost is low, non-secondary pollution.
Description of drawings
With embodiment the utility model is described in further detail with reference to the accompanying drawings below.
Fig. 1 is the structure chart of magnesia wet desulphurization equipment.
The specific embodiment
In the present embodiment, as shown in Figure 1, magnesia wet desulphurization equipment, comprise desulfurizing tower 1, cooling casing 2, crystallizing tank 3 and filter 4, be provided with pipeline circulated sprinkling system 5,6 between desulfurizing tower 1 self, cooling casing 2 and the crystallizing tank 3, be connected with control valve 7 by pipeline between two circulated sprinkling systems 5,6, the pipeline of the pipeline circulated sprinkling system 5 of desulfurizing tower 1 self is provided with concentration and detects meter, realize the switching of control valve by detection, thereby control two switchings between the pipeline circulated sprinkling system 5,6 concentration; Bottom at crystallizing tank 3 is connected to filter 4 by pipeline, and also is provided with control valve 7 on pipeline.
Self-loopa between two pipeline circulated sprinkling systems can improve the production efficiency of self, and by the switching between two pipeline circulated sprinkling systems of concentration control, the efficient of control entire equipment desulfurization that can be further good.This equipment desulfuration efficiency height, investment cost is few, and operating cost is low, non-secondary pollution.
Claims (2)
1. magnesia wet desulphurization equipment, comprise desulfurizing tower, cooling casing, crystallizing tank and filter, it is characterized in that, be provided with pipeline circulated sprinkling system between desulfurizing tower self, cooling casing and the crystallizing tank, be connected with control valve by pipeline between two circulated sprinkling systems, the pipeline of the pipeline circulated sprinkling system of desulfurizing tower self is provided with concentration and detects meter, realizes the switching of control valve by the detection to concentration, thereby controls two switchings between the pipeline circulated sprinkling system.
2. magnesia wet desulphurization equipment according to claim 1 is characterized in that, is connected to filter in the bottom of crystallizing tank by pipeline, and also is provided with control valve on pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202720150U CN201848200U (en) | 2010-07-27 | 2010-07-27 | Wet magnesium oxide desulphurization device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202720150U CN201848200U (en) | 2010-07-27 | 2010-07-27 | Wet magnesium oxide desulphurization device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201848200U true CN201848200U (en) | 2011-06-01 |
Family
ID=44090615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202720150U Expired - Fee Related CN201848200U (en) | 2010-07-27 | 2010-07-27 | Wet magnesium oxide desulphurization device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201848200U (en) |
-
2010
- 2010-07-27 CN CN2010202720150U patent/CN201848200U/en not_active Expired - Fee Related
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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: SHANGHAI SANQING ENVIRONMENT PROTECTION TECHNOLOGY Free format text: FORMER OWNER: WUXI LINGLONG MACHINERY DEVICE CO., LTD. Effective date: 20130104 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 214156 WUXI, JIANGSU PROVINCE TO: 201318 PUDONG NEW AREA, SHANGHAI |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20130104 Address after: 201318 Shanghai Pudong New Area City, Hunan Road No. 4399 building 3 Patentee after: Shanghai Sanqing Environmental Protection Technology Co., Ltd. Address before: 214156 Jiangsu city of Wuxi province Yangshan town of Huishan District of Wuxi city land yangmuqiqo Linglong Machinery Co. Ltd. Patentee before: Wuxi City Linglong Machinery Device Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110601 Termination date: 20180727 |