CN203816407U - Ash pre-removing device applied to desulfurization - Google Patents
Ash pre-removing device applied to desulfurization Download PDFInfo
- Publication number
- CN203816407U CN203816407U CN201420055414.XU CN201420055414U CN203816407U CN 203816407 U CN203816407 U CN 203816407U CN 201420055414 U CN201420055414 U CN 201420055414U CN 203816407 U CN203816407 U CN 203816407U
- Authority
- CN
- China
- Prior art keywords
- desulfurization
- spray
- absorption tower
- pump
- spray thrower
- 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
- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 18
- 230000023556 desulfurization Effects 0.000 title claims abstract description 13
- 238000010521 absorption reaction Methods 0.000 claims abstract description 23
- 239000010802 sludge Substances 0.000 claims abstract description 13
- 239000007921 spray Substances 0.000 claims description 43
- 239000002002 slurry Substances 0.000 claims description 23
- 238000005406 washing Methods 0.000 abstract description 8
- 230000003009 desulfurizing effect Effects 0.000 abstract description 6
- 239000012535 impurity Substances 0.000 abstract description 6
- 230000007613 environmental effect Effects 0.000 abstract description 5
- 239000000706 filtrate Substances 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 3
- 238000005507 spraying Methods 0.000 abstract description 3
- 239000006227 byproduct Substances 0.000 abstract description 2
- 239000011440 grout Substances 0.000 abstract 3
- 239000000779 smoke Substances 0.000 abstract 2
- 238000005299 abrasion Methods 0.000 abstract 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 13
- 239000003546 flue gas Substances 0.000 description 13
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 12
- 239000000428 dust Substances 0.000 description 10
- 239000000126 substance Substances 0.000 description 8
- 239000003153 chemical reaction reagent Substances 0.000 description 4
- 238000002425 crystallisation Methods 0.000 description 4
- 230000008025 crystallization Effects 0.000 description 4
- 239000003517 fume Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000005200 wet scrubbing Methods 0.000 description 3
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 238000003916 acid precipitation Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- 238000003915 air pollution Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 1
- 235000019341 magnesium sulphate Nutrition 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Landscapes
- Treating Waste Gases (AREA)
Abstract
The utility model discloses an ash pre-removing device applied to desulfurization and relates to environment-friendly equipment. Grout inside a grout tank of an absorption tower is delivered to a pre-sprayer of a flue through a pre-spraying pipeline by use of a pre-washing pump; impurities such as flying ash are discharged to a concentration tank after smoke is washed through spraying so as to prevent the flying ash in the original desulfurization smoke from entering a desulfurizing tower, so the desulfurization efficiency is improved, a high-quality by-product is obtained and the abrasion rate of the pre-washing pump is reduced as well; subsequently, the bottom grout in the concentration tank is delivered to a filter press by virtue of a sludge pump, then mud cakes are discharged, and then filtrate is crystalized, so the pollution is reduced and the environmental protection effect is achieved.
Description
Technical field
The utility model relates to a kind of environmental protection equipment, particularly the pre-ash handling equipment of a kind of desulfurization.
Background technology
Since China reform and opening-up, national economy rapid growth, " scientific and technical innovation, autonomous innovation " become the main flow of current industrial development, and China's industry is progressively to the future development of intensive style, energy-saving and emission-reduction, low-carbon (LC).Power industry is at present the main industries that bring up sulfur dioxide pollution and acid rain, and a large amount of discharges of sulfur dioxide cause the air pollution of Chinese city very serious.Sulfur dioxide (SO2) emissions have caused serious Acid Rain Pollution and ecological damage, thereby its ambient influnence has been a great concern.Due to being discharged into the sulfur dioxide in atmosphere, environmental monitoring is constantly strengthened, and think is removed these gases from flue gas, develops more effective and more economical device work and is continuing always.Particularly, in coal-fired power plant, applied many restrictions, these restrictions always require to improve the usefulness of removing sulfur dioxide in flue gas.The SO 2 from fume system of removing is generally divided into dry washing system and wet scrubbing system, and in dry washing system, the solution of reagent or slurries are sprayed onto in hot flue gas, and its moisture is evaporated, and then collects the quite dry byproduct that is conducive to processing; In wet scrubbing system, make reagent for example solution or the slurries of base reagent or alkaline earth reagent contact with gas, then collect and process wet mud.The dust that contains about 30mg/Nm3 in flue gas before flue gas after deduster dedusting enters desulfurizing tower for general flue-gas desulfurizing engineering at present, in wet scrubbing system, if obtain high-quality accessory substance finished product, must control the dust concentration in flue gas as far as possible, in existing sulfur removal technology, flue gas directly enters absorption tower after pre-spray, accessory substance after countercurrent spray directly enters accessory substance treatment system, the impurity such as flying dust in flue gas are all in the stock tank of absorption tower like this, through agitator, stir in slurries, slurries are transported to spraying layer by circulating pump again and are sprayed by nozzle, easily cause the wearing and tearing of circulating pump and the obstruction of nozzle, and desulfuration efficiency is declined, accessory substance does not reach the quality requirements of commodity magnesium sulfate yet.Therefore, scientific and technological research staff and technical staff of the same trade improve design to the pre-dedusting process of existing desulfurization, although have made some progress, all fail to solve this technical barrier.
Summary of the invention
The purpose of this utility model is to overcome above deficiency, provide a kind of desulfurization pre-ash handling equipment, this pre-ash disposal sulfur removal technology adds pre-spray thrower, sludge pump, concentration basin, pre-wash pump in porch, absorption tower, the slurries of the inside, absorption tower are delivered to the pre-spray thrower of flue with pre-wash pump, flue gas is after spray washing, the impurity such as flying dust are drained into concentration basin, desulfuration efficiency is improved, also obtained high-quality accessory substance, again the bottom slurries in concentration basin being delivered to filter press mud cake arranges outward, filtrate crystallization treatment, has reduced pollution.
The utility model solves the technical scheme that its technical problem adopts: comprise pre-spray thrower, sludge pump, concentration basin, pre-wash pump, slurry pool of absorption tower, pre-spray piping, at flue entrance place, pre-spray thrower is set, pre-spray thrower is arranged in the flue of absorption tower, pre-wash pump is connected with slurry pool of absorption tower, pre-spray piping is communicated with pre-wash pump and pre-spray thrower, pre-spray thrower bottom arranges concentration basin, and sludge pump is connected with concentration basin.
Know-why of the present utility model is: in porch, absorption tower, add pre-spray thrower, sludge pump, concentration basin, pre-wash pump, at flue entrance place, pre-spray thrower is set, can avoid the phenomenon of spray nozzle clogging to occur, pre-spray thrower is arranged in the flue of absorption tower, pre-wash pump is connected with slurry pool of absorption tower, the slurries of slurry pool of absorption tower the inside are delivered to the pre-spray thrower of flue by pre-spray piping with pre-wash pump, flue gas is after spray washing, the impurity such as flying dust are drained into concentration basin, effectively stop the flying dust in original desulfurization fume to enter desulfurizing tower, improve desulfuration efficiency, obtained high-quality accessory substance, also reduce the wear rate of pre-wash pump, again the bottom slurries in concentration basin are delivered to filter press mud cake by sludge pump and arrange outward, filtrate crystallization treatment.
The beneficial effects of the utility model are: the slurries of slurry pool of absorption tower the inside are delivered to the pre-spray thrower of flue by pre-spray piping with pre-wash pump, flue gas is after spray washing, the impurity such as flying dust are drained into concentration basin, effectively stop the flying dust in original desulfurization fume to enter desulfurizing tower, improve desulfuration efficiency, obtain high-quality accessory substance, also reduced the wear rate of pre-wash pump; Again the bottom slurries in concentration basin are delivered to filter press mud cake by sludge pump and arrange outward, filtrate crystallization treatment, has reduced pollution, reaches the effect of environmental protection.
Accompanying drawing explanation
In conjunction with the accompanying drawings and embodiments the utility model to be further described below:
Fig. 1 is the mechanism principle figure of the pre-ash handling equipment of a kind of desulfurization;
In Fig. 1: 1 pre-spray thrower, 2 sludge pumps, 3 concentration basins, 4 pre-wash pumps, 5 slurry pool of absorption towers, 6 pre-spray pipings.
The specific embodiment
In Fig. 1, pre-spray thrower 1 is set at flue entrance place, pre-spray thrower 1 is arranged in the flue of absorption tower, pre-wash pump 4 is connected with slurry pool of absorption tower 5, pre-spray piping 6 is communicated with pre-wash pump 4 and pre-spray thrower 1, and pre-spray thrower 1 bottom arranges concentration basin 3, and sludge pump 2 is connected with concentration basin 3.
In porch, absorption tower, add pre-spray thrower 1, sludge pump 2, concentration basin 3, pre-wash pump 4, pre-spray thrower 1 is set at flue entrance place, can avoid the phenomenon of spray nozzle clogging to occur, pre-spray thrower 1 is arranged in the flue of absorption tower, pre-wash pump 4 is connected with slurry pool of absorption tower 5, the slurries of slurry pool of absorption tower 5 the insides are delivered to the pre-spray thrower 1 of flue by pre-spray piping 6 with pre-wash pump 4, flue gas is after spray washing, the impurity such as flying dust are drained into concentration basin 3, effectively stop the flying dust in original desulfurization fume to enter desulfurizing tower, improve desulfuration efficiency, obtained high-quality accessory substance, also reduce the wear rate of pre-wash pump 4, again the bottom slurries in concentration basin 3 are delivered to filter press mud cake by sludge pump 2 and arrange outward, filtrate crystallization treatment, has reduced pollution, reaches the effect of environmental protection.
Claims (1)
1. the pre-ash handling equipment of desulfurization, comprise pre-spray thrower, sludge pump, concentration basin, pre-wash pump, slurry pool of absorption tower, pre-spray piping, it is characterized in that: at flue entrance place, pre-spray thrower is set, pre-spray thrower is arranged in the flue of absorption tower, pre-wash pump is connected with slurry pool of absorption tower, pre-spray piping is communicated with pre-wash pump and pre-spray thrower, and pre-spray thrower bottom arranges concentration basin, and sludge pump is connected with concentration basin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420055414.XU CN203816407U (en) | 2014-01-22 | 2014-01-22 | Ash pre-removing device applied to desulfurization |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420055414.XU CN203816407U (en) | 2014-01-22 | 2014-01-22 | Ash pre-removing device applied to desulfurization |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203816407U true CN203816407U (en) | 2014-09-10 |
Family
ID=51471951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420055414.XU Expired - Fee Related CN203816407U (en) | 2014-01-22 | 2014-01-22 | Ash pre-removing device applied to desulfurization |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203816407U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106621679A (en) * | 2016-12-19 | 2017-05-10 | 山东国舜建设集团有限公司 | Device for cooling, condensing and prewashing coked gas before wet desulfuration and dust removal |
-
2014
- 2014-01-22 CN CN201420055414.XU patent/CN203816407U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106621679A (en) * | 2016-12-19 | 2017-05-10 | 山东国舜建设集团有限公司 | Device for cooling, condensing and prewashing coked gas before wet desulfuration and dust removal |
| CN106621679B (en) * | 2016-12-19 | 2019-06-18 | 山东国舜建设集团有限公司 | Cooling condensation pre-washing device before a kind of coking smoke wet method sulphur removing and dust removing |
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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: 20140910 Termination date: 20150122 |
|
| EXPY | Termination of patent right or utility model |