CN205914022U - Processing system is united to coal fired power plant flue gas sulfur trioxide and desulfurization waste water - Google Patents
Processing system is united to coal fired power plant flue gas sulfur trioxide and desulfurization waste water Download PDFInfo
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- CN205914022U CN205914022U CN201620970575.0U CN201620970575U CN205914022U CN 205914022 U CN205914022 U CN 205914022U CN 201620970575 U CN201620970575 U CN 201620970575U CN 205914022 U CN205914022 U CN 205914022U
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- sulfur trioxide
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Abstract
The utility model discloses a processing system is united to coal fired power plant flue gas sulfur trioxide and desulfurization waste water, including the SCR reactor that is equipped with entry flue and exhaust pass, still including the absorbent dissolving box who is used for the preparation with store the sulfur trioxide absorbent, absorbent dissolving box's first entry end links to each other with the pipeline I that is used for letting in desulfurization waste water, the the second entrance end links to each other with the pipeline II that is used for letting in the absorbent granule, the entry end that absorbent dissolving box's exit end passes through pipeline III and baffle -box links to each other, the first exit end of baffle -box through an injection apparatus in with the baffle -box the mixed liquid of desulfurization waste water and sulfur trioxide absorbent spray the flue that enters the mouth, the utility model provides a low energy consumption, the easy processing system is united to coal fired power plant flue gas sulfur trioxide and desulfurization waste water who adjusts to low -cost mode is two types of pollutants desorptions simultaneously, reaches energy saving and emission reduction's effect.
Description
Technical field
This utility model is related to one kind, particularly to a kind of coal-fired plant flue gas sulfur trioxide and desulfurization wastewater Combined Treatment
System.
Background technology
Shortage of water resources, water pollution are seriously one of subject matter that the sustainable development of socio-economy of current China faces.
Coal-burning power plant is tradition water rich and influential family, and wastewater discharge is big.Taking 1 300mw unit as a example, discharge of wastewater about 5t/h.Desulfurization is given up
The features such as water has high salt, high rigidity, concentration of suspension is high, fine particle ratio is big, intractability is larger.Traditional desulfurization wastewater
Process and mainly adopt three header systems, heavy metal and suspension content to be processed, up to standard after discharge, or enter Power Plant Ash
Field is used for rushing ash.Minority power plant even three header systems are all unable to bringing normally into operation, directly discharge containing high-salt wastewater, to environment in a large number
Make a very bad impression.
Although sulfur trioxide is to be present in one of coal-fired plant flue gas pollutant on a small quantity, its presence has very big
Harm, on the one hand the normal table of power plant is run produce potential threaten, on the other hand atmospheric environment is produced serious
Pollution.Therefore, the control to sulfur trioxide in coal-fired plant flue gas is extremely urgent.It is essentially from two aspects: one is coal combustion
During, in coal, flammable combustion of sulfur generates sulfur dioxide, and part sulfur dioxide is further oxidized to sulfur trioxide, wherein about
The sulfur dioxide of 0.5-2% is oxidized to sulfur trioxide further；Two is part titanium dioxide in flue gas in scr denitrification process
Sulfur is oxidized to sulfur trioxide by catalyst, and the sulfur dioxide of about 0.5-1.5% is sulfur trioxide by catalysis oxidation, titanium dioxide
Sulfur oxidation rate depends on type and the operating condition of catalyst.At present, in removing flue gas, the method for sulfur trioxide mainly has and mixes burning
Spray alkaline absorbent in low-sulfur coal, stove, in furnace rear flue gas, spray into alkaline absorbent etc., but all there is relatively costly etc. asking
Topic.
In conventional coal-fired plant flue gas, sulfur trioxide and desulfurization wastewater are required for reducing discharging and control, and therefore, exploitation is a kind of
Low energy consumption, the easily sulfur trioxide in flue gas adjusting and desulfurization wastewater joint processing system seem very urgent and important.
Utility model content
In view of this, the purpose of this utility model is coal-fired plant flue gas three oxygen providing a kind of low energy consumption, easily adjusting
Change sulfur and desulfurization wastewater joint processing system, in the way of inexpensive, two pollutants are removed simultaneously, reach energy-saving and emission-reduction
Effect.
Coal-fired plant flue gas sulfur trioxide of the present utility model and desulfurization wastewater joint processing system, including being provided with entrance cigarette
The scr reactor of road and exhaust pass, also includes the absorbent dissolving case for preparing and storing sulfur trioxide absorption agent, described
The first entrance end that absorbent dissolves case is connected with the pipeline for being passed through desulfurization wastewater, second entrance end be used for being passed through suction
The pipeline receiving agent granule is connected, and the port of export that described absorbent dissolves case is connected with the arrival end of baffle-box by pipeline,
The first injection apparatus are passed through at the first outlet end of described baffle-box, and desulfurization wastewater in baffle-box and sulfur trioxide absorption agent is mixed
Close liquid and be ejected into gas approach.
Further, the second injection apparatus are passed through by desulfurization wastewater in baffle-box and three oxygen in the second outlet end of described baffle-box
The mixed liquor changing sulfur absorbing agent is ejected into exhaust pass.
Further, described first injection apparatus include air compressor, displacement pump and nozzle, and the of described baffle-box
One port of export is connected with the arrival end of displacement pump by pipeline, and the port of export of described displacement pump passes through pipeline and entrance cigarette
Road is connected, and described nozzle is located at the end of pipeline, and described air compressor is connected with pipeline by pipeline.
Further, described displacement pump is metering pump configuration, and described nozzle is atomizing nozzle structure.
Further, described second injection apparatus include air compressor, displacement pump and nozzle, described baffle-box
Second outlet end is connected with the arrival end of displacement pump by pipeline, and the port of export of described displacement pump passes through pipeline and enters
Mouth flue is connected, and described nozzle is located at the end of pipeline, and described air compressor is connected with pipeline by pipeline.
Further, described displacement pump is metering pump configuration, and described nozzle is atomizing nozzle structure.
Further, described sulfur trioxide absorption agent be sodium carbonate, calcium hydroxide, magnesium oxide, magnesium hydroxide, in sodium bicarbonate
One kind.
Further, the desulfurization wastewater storage bin for storing desulfurization wastewater, described desulfurization wastewater storage bin and suction are also included
Receive and be connected by pipeline between agent dissolving case.
Further, the absorbent granules storage bin for storing absorbent granules, described absorbent granules storage are also included
It is connected by pipeline between case and absorbent dissolving case.
The beneficial effects of the utility model: coal-fired plant flue gas sulfur trioxide of the present utility model and desulfurization wastewater combine place
Reason system, by spraying sulfur trioxide absorption agent, three in sulfur trioxide absorption agent and flue gas to the gas approach of scr reactor
There is gas-solid reaction in sulfur oxide, by the sulfur trioxide removing in flue gas；Meanwhile, by the gas approach injection to scr reactor
Desulfurization wastewater, desulfurization wastewater evaporates in the presence of high-temperature flue gas, thus realizing qualified discharge；This utility model low energy consumption, easily
Adjust, in the way of inexpensive, two pollutants are removed simultaneously, reach the effect of energy-saving and emission-reduction.
Brief description
With reference to the accompanying drawings and examples this utility model is further described:
Fig. 1 is structural representation of the present utility model.
Specific embodiment
Fig. 1 be structural representation of the present utility model, as shown in the figure: the coal-fired plant flue gas sulfur trioxide of the present embodiment and
Desulfurization wastewater joint processing system, including the scr reactor 1 being provided with gas approach 11 and exhaust pass 12, also includes for making
The absorbent dissolving case 2 of standby and storage sulfur trioxide absorption agent, described absorbent dissolves the first entrance end of case 2 and is used for being passed through
The pipeline 31 of desulfurization wastewater is connected, second entrance end is connected with the pipeline 32 for being passed through absorbent granules, described absorbent
The port of export of dissolving case 2 is connected with the arrival end of baffle-box 4 by pipeline 33, and the first outlet end of described baffle-box 4 is passed through
The mixed liquor of desulfurization wastewater in baffle-box 4 and sulfur trioxide absorption agent is ejected into gas approach 11 by the first injection apparatus；Scr is anti-
Answer device 1 selective catalytic reduction Benitration reactor, in its gas approach 11 and exhaust pass 12, all circulation has high-temperature gas (temperature
Generally higher than 300 DEG C of degree)；Sulfur trioxide absorption agent can be sodium carbonate, calcium hydroxide, magnesium oxide, magnesium hydroxide, sodium bicarbonate
One of (absorbent granules are corresponding with corresponding sulfur trioxide absorption agent), preferably sodium carbonate, sodium carbonate and sulfur trioxide
Sodium sulfate is generated, sulfur trioxide removal efficiency is high after reacting；Desulfurization wastewater and absorbent granules are passed through absorbent dissolving case 2 shape
Become the mixture of sulfur trioxide absorption agent and desulfurization wastewater, the mass ratio of general sulfur trioxide absorption agent is 5-30%, and remaining is
Desulfurization wastewater；Baffle-box 4 is used for transition, and can store larger amount of mixed liquor；The straying quatity of mixed liquor can be according to different capacity
Coal-burning boiler depending on, such as 300mw coal-burning boiler, straying quatity can be 1-3t/h；This system may also include for storing desulfurization
The desulfurization wastewater storage bin 5 of waste water, described desulfurization wastewater storage bin is dissolved with absorbent and is connected by pipeline 31 between case 2；Should
System may also include the absorbent granules storage bin 6 for storing absorbent granules, described absorbent granules storage bin and absorption
It is connected by pipeline 32 between agent dissolving case 2；By spraying sulfur trioxide absorption agent to the gas approach 11 of scr reactor 1,
There is gas-solid reaction with the sulfur trioxide in flue gas in sulfur trioxide absorption agent, by the sulfur trioxide removing in flue gas；Meanwhile, pass through
To the gas approach 11 injection desulfurization waste water of scr reactor 1, desulfurization wastewater evaporates in the presence of high-temperature flue gas, thus realizing
Qualified discharge.
In the present embodiment, the second injection apparatus are passed through by desulfurization wastewater in baffle-box 4 in the second outlet end of described baffle-box 4
It is ejected into exhaust pass 12 with the mixed liquor of sulfur trioxide absorption agent；Simultaneously to gas approach 11 and exhaust pass 12 injection mixing
Liquid, can make full use of the construction featuress of scr reactor 1, effectively improve the removal efficiency of sulfur trioxide in flue gas and desulfurization wastewater.
In the present embodiment, described first injection apparatus include air compressor 71, displacement pump 72 and nozzle 73, described
The first outlet end of baffle-box 4 is connected with the arrival end of displacement pump 72 by pipeline 34, the port of export of described displacement pump 72
It is connected with gas approach 11 by pipeline 35, described nozzle 73 is located at the end of pipeline 35, described air compressor 71
It is connected with pipeline 35 by pipeline 36；Air compressor 71 provides the mixed liquor after pressure-air, pressure-air and pressurization
Mix and be atomized, form atomized spray, be conducive to improving the removal efficiency of sulfur trioxide in flue gas and desulfurization wastewater；Described displacement pump
72 is metering pump configuration, can keep the constant flow rate unrelated with discharge pressure；Described nozzle 73 is atomizing nozzle structure, has
Atomized spray beneficial to mixed liquor；In the same manner, described second injection apparatus include air compressor 81, displacement pump 82 and nozzle
83, the second outlet end of described baffle-box 4 is connected with the arrival end of displacement pump 82 by pipeline 37, described displacement pump
82 port of export is connected with gas approach 11 by pipeline 38, and described nozzle 83 is located at the end of pipeline 38, described sky
Air compressor 81 is connected with pipeline 38 by pipeline 39；Described displacement pump 82 is metering pump configuration, described nozzle
83 is atomizing nozzle structure；Above-mentioned each pipeline can select existing suitable material according to its purposes.
Finally illustrate, above example only in order to the technical solution of the utility model to be described and unrestricted, although ginseng
According to preferred embodiment, this utility model is described in detail, it will be understood by those within the art that, can be to this
The technical scheme of utility model is modified or equivalent, the objective without deviating from technical solutions of the utility model and model
Enclose, it all should be covered in the middle of right of the present utility model.
Claims (9)
1. a kind of coal-fired plant flue gas sulfur trioxide and desulfurization wastewater joint processing system, including be provided with gas approach and outlet cigarette
The scr reactor in road it is characterised in that: also include the absorbent dissolving case for preparing and storing sulfur trioxide absorption agent, institute
State absorbent dissolve case first entrance end be connected with the pipeline for being passed through desulfurization wastewater, second entrance end be used for being passed through
The pipeline of absorbent granules is connected, and described absorbent dissolves the arrival end phase by pipeline and baffle-box for the port of export of case
Even, the first injection apparatus are passed through by desulfurization wastewater in baffle-box and sulfur trioxide absorption agent in the first outlet end of described baffle-box
Mixed liquor is ejected into gas approach.
2. coal-fired plant flue gas sulfur trioxide according to claim 1 and desulfurization wastewater joint processing system, its feature exists
Pass through the second injection apparatus in: the second outlet end of described baffle-box by desulfurization wastewater in baffle-box and sulfur trioxide absorption agent
Mixed liquor is ejected into exhaust pass.
3. coal-fired plant flue gas sulfur trioxide according to claim 1 and desulfurization wastewater joint processing system, its feature exists
In: described first injection apparatus include air compressor, displacement pump and nozzle, and the first outlet end of described baffle-box is passed through
Pipeline is connected with the arrival end of displacement pump, and the port of export of described displacement pump is connected with gas approach by pipeline, described
Nozzle is located at the end of pipeline, and described air compressor is connected with pipeline by pipeline.
4. coal-fired plant flue gas sulfur trioxide according to claim 3 and desulfurization wastewater joint processing system, its feature exists
In: described displacement pump is metering pump configuration, and described nozzle is atomizing nozzle structure.
5. coal-fired plant flue gas sulfur trioxide according to claim 2 and desulfurization wastewater joint processing system, its feature exists
In: described second injection apparatus include air compressor, displacement pump and nozzle, and the second outlet end of described baffle-box leads to
Piping is connected with the arrival end of displacement pump, and the port of export of described displacement pump is connected with gas approach by pipeline,
Described nozzle is located at the end of pipeline, and described air compressor is connected with pipeline by pipeline.
6. coal-fired plant flue gas sulfur trioxide according to claim 5 and desulfurization wastewater joint processing system, its feature exists
In: described displacement pump is metering pump configuration, and described nozzle is atomizing nozzle structure.
7. the coal-fired plant flue gas sulfur trioxide according to any one of claim 1 to 6 and desulfurization wastewater joint processing system,
It is characterized in that: described sulfur trioxide absorption agent is sodium carbonate, calcium hydroxide, magnesium oxide, magnesium hydroxide, in sodium bicarbonate one
Kind.
8. the coal-fired plant flue gas sulfur trioxide according to any one of claim 1 to 6 and desulfurization wastewater joint processing system,
It is characterized in that: also include the desulfurization wastewater storage bin for storing desulfurization wastewater, described desulfurization wastewater storage bin and absorbent
It is connected by pipeline between dissolving case.
9. the coal-fired plant flue gas sulfur trioxide according to any one of claim 1 to 6 and desulfurization wastewater joint processing system,
It is characterized in that: also include the absorbent granules storage bin for storing absorbent granules, described absorbent granules storage bin with
It is connected by pipeline between absorbent dissolving case.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620970575.0U CN205914022U (en) | 2016-08-29 | 2016-08-29 | Processing system is united to coal fired power plant flue gas sulfur trioxide and desulfurization waste water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620970575.0U CN205914022U (en) | 2016-08-29 | 2016-08-29 | Processing system is united to coal fired power plant flue gas sulfur trioxide and desulfurization waste water |
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| CN205914022U true CN205914022U (en) | 2017-02-01 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108434950A (en) * | 2018-03-15 | 2018-08-24 | 东南大学 | A kind of devices and methods therefor of the evaporation of coordinated desulfurization waste water flue and enhancing fine particle and sulfur trioxide removing |
| CN110844957A (en) * | 2019-11-28 | 2020-02-28 | 北京龙电宏泰环保科技有限公司 | Desulfurization wastewater zero-discharge method with efficiently adjustable working condition |
| CN117258498A (en) * | 2023-10-30 | 2023-12-22 | 河北中科朗博环保科技有限公司 | Bypass flue system for corrosion prevention of flue gas purification facility of sintering machine |
-
2016
- 2016-08-29 CN CN201620970575.0U patent/CN205914022U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108434950A (en) * | 2018-03-15 | 2018-08-24 | 东南大学 | A kind of devices and methods therefor of the evaporation of coordinated desulfurization waste water flue and enhancing fine particle and sulfur trioxide removing |
| CN108434950B (en) * | 2018-03-15 | 2021-11-02 | 东南大学 | Device and method for assisting in flue evaporation of desulfurization wastewater and enhancing removal of fine particulate matters and sulfur trioxide |
| CN110844957A (en) * | 2019-11-28 | 2020-02-28 | 北京龙电宏泰环保科技有限公司 | Desulfurization wastewater zero-discharge method with efficiently adjustable working condition |
| CN110844957B (en) * | 2019-11-28 | 2023-06-30 | 北京龙电宏泰环保科技有限公司 | Desulfurization wastewater zero discharge method with working conditions capable of being efficiently adjusted |
| CN117258498A (en) * | 2023-10-30 | 2023-12-22 | 河北中科朗博环保科技有限公司 | Bypass flue system for corrosion prevention of flue gas purification facility of sintering machine |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No. 96, Jinyu Avenue, new North District, Chongqing 401122 Patentee after: SPIC YUANDA ENVIRONMENTAL PROTECTION ENGINEERING Co.,Ltd. CHONGQING SCIENCE AND TECHNOLOGY BRANCH Address before: No. 96, Jinyu Avenue, new North District, Chongqing 401122 Patentee before: CPI YUANDA ENVIRONMENTAL-PROTECTION ENGINEERING CO.LTD.CHONGQING SCIENCE & TECHNOLOGY BRANCH |
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| CP01 | Change in the name or title of a patent holder | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230608 Address after: No.96 Jinyu Avenue, new North District, Yubei District, Chongqing Patentee after: National electric investment group Yuanda Environmental Protection Engineering Co.,Ltd. Address before: No. 96, Jinyu Avenue, new North District, Chongqing 401122 Patentee before: SPIC YUANDA ENVIRONMENTAL PROTECTION ENGINEERING Co.,Ltd. CHONGQING SCIENCE AND TECHNOLOGY BRANCH |
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| TR01 | Transfer of patent right |