CN104030512A - Device for treating desulphurization waste water of 300MW and above thermal generator set - Google Patents
Device for treating desulphurization waste water of 300MW and above thermal generator set Download PDFInfo
- Publication number
- CN104030512A CN104030512A CN201410285547.0A CN201410285547A CN104030512A CN 104030512 A CN104030512 A CN 104030512A CN 201410285547 A CN201410285547 A CN 201410285547A CN 104030512 A CN104030512 A CN 104030512A
- Authority
- CN
- China
- Prior art keywords
- waste water
- water
- neutralization reaction
- desulphurization
- above thermal
- 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.)
- Pending
Links
Landscapes
- Treating Waste Gases (AREA)
Abstract
The invention discloses a device for treating desulphurization waste water of a 300MW and above thermal generator set. The device for treating the desulphurization waste water of the 300MW and above thermal generator set comprises a waste water neutralization reaction tank, a clarification tank, an air preheater arranged at an inlet of a smoke flue, an atomizer arranged in the smoke flue, a dust remover arranged at an outlet of the smoke flue and a communicated desulphurization tower, wherein a water inlet pipe of the waste water neutralization reaction tank is connected with a water draining pipe of the desulphurization tower, a water inlet pipe of the clarification tank is connected with a water draining pipe of the waste water neutralization reaction tank, and the clarification tank is connected with the atomizer by virtue of a water pump conveying device and an air entrapping device. The device for treating the desulphurization waste water of the 300MW and above thermal generator set has the advantages that a technological process is simple, the desulphurization waste water can be treated simply and efficiently at low cost, the influence of high-concentration chloride ions to the environment is thoroughly eliminated and true zero discharge of waste water is realized.
Description
Technical field
The invention belongs to desulfurizing waste water processing device, concrete a kind of 300MW and above thermal power generation unit desulfurizing waste water processing device.
Background technology
Desulfurization wastewater is mainly the discharge water on absorption tower in boiler of power plant smoke-gas wet desulfurization (limestone/gypsum method) process.In order to maintain the balance of desulfurizer slurries recycle system material, prevent that in flue gas, soluble part is that cl concn exceedes prescribed value and ensures gypsum quality, must from system, discharge a certain amount of waste water, waste water is mainly from gypsum dehydration and cleaning system.The impurity containing in waste water mainly comprises suspended substance, oversaturated sulphite, vitriol and heavy metal, is much wherein in national environmental standard, to require the strict first kind pollutent of controlling.Larger with traditional wastewater property difference, be difficult to synchronous processing, have to drop into substantial contribution independently desulfurization wastewater treatment system is set.
Summary of the invention
The object of the invention is for current desulfurization wastewater processing cost high, the situations such as treatment effect is undesirable, a kind of cost is low, treatment effect is good 300MW and above thermal power generation unit desulfurizing waste water processing device are provided, thereby can solve desulfurization wastewater processing problem by low-cost high-efficiency.
The technical scheme that realizes the object of the invention employing is as follows:
Power plant desulfurization wastewater treatment equipment provided by the invention, comprise waste water neutralization reaction pond, settling pond, be located at flue entrance air preheater, be located at spraying gun in flue, be located at the fly-ash separator of flue outlet and the thionizer of connection, the water inlet pipe in described waste water neutralization reaction pond is connected with the water shoot of thionizer, the water inlet pipe of settling pond is connected with the water shoot in waste water neutralization reaction pond, and settling pond is connected with spraying gun with aerator by water pump e Foerderanlage.
Described waste water neutralization reaction pond adopts three headers that are composed in series by 3 separate slots; Described spraying gun position is positioned at 1.5 meters of positions after air preheater, and horizontally disposed, atomization direction is identical with flue gas direction.
Feature of the present invention is first to use three header preliminary treatment desulfurization wastewaters, adjust the pH of desulfurization wastewater, the heavy metal ion of the desulfurization wastewater of sedimentation simultaneously and the calcium ions and magnesium ions of desulfurization wastewater, then desulfurization wastewater after treatment is entered to settling pond, settling pond is used for settling to settle down, the throw out of bottom is condensed into mud, top clear water utilizes transferpump and compressed air delivery to atomization in the flue after air preheater, utilize the waste heat of flue gas by the desulfurization wastewater evaporation after atomization, finally catch the impurity after evaporation with fly-ash separator, it has the following advantages:
1, technical process is simple, and maintenance is little, and simply high efficiency, low cost is processed desulfurization wastewater, has thoroughly solved the impact of high-concentration chlorine ion on environment simultaneously, realizes the truly zero release of waste water.
2, investment only has 1/60 of current electrocrystallization method, and energy consumption is little, and running cost is than only having 1/20 of electrocrystallization method.
3, can realize fully automated, operational safety is simple.
4, be applicable to 300MW and above wet desulphurization waste water unit, utilize fume afterheat to evaporate heavily contaminated desulfurization wastewater completely, improve the utilising efficiency of heat.
Further illustrate technical scheme of the present invention below in conjunction with accompanying drawing.
Brief description of the drawings
Fig. 1 is structural representation of the present invention.
Fig. 2 is the structural representation in waste water neutralization reaction pond in the present invention.
Embodiment
Referring to Fig. 1,300MW provided by the invention and above thermal power generation unit desulfurizing waste water processing device, comprise waste water neutralization reaction pond 8, settling pond 7, be located at flue entrance air preheater 4, be located at the spraying gun 3 in flue, the thionizer 1 that is located at the fly-ash separator 2 of flue outlet and is communicated with fly-ash separator 2, the water inlet pipe in described waste water neutralization reaction pond 8 is connected with the water shoot of thionizer 1, the water inlet pipe of settling pond 7 is connected with the water shoot in waste water neutralization reaction pond 8, and settling pond 7 is connected with spraying gun 3 with aerator 5 by water pump e Foerderanlage 6.
See Fig. 2, described waste water neutralization reaction pond 8 adopts three headers that are composed in series by 3 separate slots, and three headers comprise casing 803, be located at water shoot 804 below of water inlet pipe 801 before casing and casing, be located at the dividing plate 802 that forms separate slot in casing.
Described spraying gun 3 positions are positioned at the rear 1.5 meters of positions of air preheater 4, and horizontally disposed, atomization direction is identical with flue gas direction; 3.0～10 tons/hour of the flow controls of described water pump e Foerderanlage 6, described aerator 5 adopts air compressor, and supply gas pressure is controlled at 0.5～0.8MPa continuously.
Principle of work of the present invention is as follows:
Flue gas enters fly-ash separator 2 dedustings from air preheater 4 along flue, after thionizer 1 desulfurization, discharge.Desulfurization wastewater enters waste water neutralization reaction pond 8(tri-headers from thionizer 1 through waste pipe), gravity flow is full of each separate slot of three headers successively, in three headers, waste water is through peroxidation, precipitin reaction is by calcium ions and magnesium ions in desulfurization wastewater, heavy metal ion is all carried out precipitation process, the settling pond 7 that the water flowing out from three headers enters settles down settling, the throw out of bottom is condensed into mud, under the acting in conjunction of top clear water by water pump e Foerderanlage 6 and aerator 5, desulfurization wastewater after clarification is become to steam water interface to be input to and to be positioned at air preheater 4 spraying gun 6 of 1.5m position below, desulfurization wastewater by spraying gun 6 atomizations after along flow of flue gas direction by the waste heat evaporate to dryness of flue gas, finally by fly-ash separator 2 by the impurity of desulfurization wastewater along with flying dust deposits, aqueous vapor after evaporation reenters thionizer 1 and enters next circulation, thereby reach the object of processing desulfurization wastewater.
Claims (2)
1. a 300MW and above thermal power generation unit desulfurizing waste water processing device, it is characterized in that comprising waste water neutralization reaction pond, settling pond, be located at flue entrance air preheater, be located at spraying gun in flue, be located at the fly-ash separator of flue outlet and the thionizer of connection, the water inlet pipe in described waste water neutralization reaction pond is connected with the water shoot of thionizer, the water inlet pipe of settling pond is connected with the water shoot in waste water neutralization reaction pond, and settling pond is connected with spraying gun with aerator by water pump e Foerderanlage.
2. 300MW according to claim 1 and above thermal power generation unit desulfurizing waste water processing device, is characterized in that described waste water neutralization reaction pond adopts three headers that are composed in series by 3 separate slots; Described spraying gun position is positioned at 1.5 meters of positions after air preheater, and horizontally disposed, atomization direction is identical with flue gas direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410285547.0A CN104030512A (en) | 2014-06-24 | 2014-06-24 | Device for treating desulphurization waste water of 300MW and above thermal generator set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410285547.0A CN104030512A (en) | 2014-06-24 | 2014-06-24 | Device for treating desulphurization waste water of 300MW and above thermal generator set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104030512A true CN104030512A (en) | 2014-09-10 |
Family
ID=51461543
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410285547.0A Pending CN104030512A (en) | 2014-06-24 | 2014-06-24 | Device for treating desulphurization waste water of 300MW and above thermal generator set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104030512A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104689676A (en) * | 2015-03-13 | 2015-06-10 | 北京中能诺泰节能环保技术有限责任公司 | Wet-process desulfurization wastewater utilization system and process |
| CN105776706A (en) * | 2016-04-14 | 2016-07-20 | 大唐环境产业集团股份有限公司 | Device and method for treating desulfurized waste water through flue multi-level evaporation |
| CN106076100A (en) * | 2016-08-08 | 2016-11-09 | 浙江大学 | A kind of coal-fired flue-gas semidry method takes off the desulfurization wastewater Zero discharging system of fluorine and chlorine removal |
| CN114307481A (en) * | 2021-11-25 | 2022-04-12 | 淮北矿业股份有限公司 | Totally closed atomizing dust pelletizing system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102430331A (en) * | 2011-09-19 | 2012-05-02 | 华电环保系统工程有限公司 | Method and device for removing mercury by waste water subjected to wet flue gas desulphurization in coal-fired power plant |
| CN203946993U (en) * | 2014-06-24 | 2014-11-19 | 湖南正川电力科技有限公司 | A kind of 300MW and above thermal power generation unit desulfurizing waste water processing device |
-
2014
- 2014-06-24 CN CN201410285547.0A patent/CN104030512A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102430331A (en) * | 2011-09-19 | 2012-05-02 | 华电环保系统工程有限公司 | Method and device for removing mercury by waste water subjected to wet flue gas desulphurization in coal-fired power plant |
| CN203946993U (en) * | 2014-06-24 | 2014-11-19 | 湖南正川电力科技有限公司 | A kind of 300MW and above thermal power generation unit desulfurizing waste water processing device |
Non-Patent Citations (1)
| Title |
|---|
| 禾志强等: "《石灰石-石膏湿法烟气脱硫优化运行》", 31 January 2012, 北京：中国电力出版社, article "第三章湿法烟气脱硫设计优化-第6节废水系统设计优化方案", pages: 118-121 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104689676A (en) * | 2015-03-13 | 2015-06-10 | 北京中能诺泰节能环保技术有限责任公司 | Wet-process desulfurization wastewater utilization system and process |
| CN104689676B (en) * | 2015-03-13 | 2016-11-30 | 北京中能诺泰节能环保技术有限责任公司 | wet desulphurization waste water utilization system and technique thereof |
| CN105776706A (en) * | 2016-04-14 | 2016-07-20 | 大唐环境产业集团股份有限公司 | Device and method for treating desulfurized waste water through flue multi-level evaporation |
| CN105776706B (en) * | 2016-04-14 | 2018-09-25 | 大唐环境产业集团股份有限公司 | A kind of device and method of flue multistage evaporation processing desulfurization wastewater |
| CN106076100A (en) * | 2016-08-08 | 2016-11-09 | 浙江大学 | A kind of coal-fired flue-gas semidry method takes off the desulfurization wastewater Zero discharging system of fluorine and chlorine removal |
| CN114307481A (en) * | 2021-11-25 | 2022-04-12 | 淮北矿业股份有限公司 | Totally closed atomizing dust pelletizing system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105457468B (en) | The technique that a kind of tower boiler flue gas recycled is atomized desulfurization wastewater | |
| CN101417827B (en) | Technique method for processing desulphurization waste water | |
| CN101417826B (en) | Method and system for processing desulphurization waste water | |
| CN105417604B (en) | Utilize the method and device of fume afterheat processing desulfurization wastewater | |
| CN104129824B (en) | Heat-engine plant desulfurized wastewater comprehensive treatment and dust granules thing discharge-reducing method | |
| CN209974506U (en) | Wet flue gas desulfurization waste water concentration decrement system | |
| CN105152254A (en) | Flue gas desulfurization and wastewater treatment system for coal-fired power plant | |
| WO2017177741A1 (en) | Device and method for treating desulfurization wastewater by means of flue multi-stage evaporation | |
| CN206580583U (en) | FGD wastewater zero discharge systems | |
| CN111908696A (en) | Zero-discharge system and method for flue gas and water co-treatment of desulfurization wastewater | |
| CN206940653U (en) | Desulphurization for Coal-fired Power Plant waste water zero discharge device | |
| CN104030512A (en) | Device for treating desulphurization waste water of 300MW and above thermal generator set | |
| CN205011413U (en) | Coal fired power plant flue gas desulfurization effluent disposal system | |
| CN105174584A (en) | Zero discharging processing device of desulfurization waste water | |
| CN113501612A (en) | Energy-concerving and environment-protective type desulfurization waste water zero release processing system | |
| CN104529038A (en) | Anti-scaling evaporative crystallization treatment process and system for coal-fired power plant wet desulphurization waste water | |
| CN203946993U (en) | A kind of 300MW and above thermal power generation unit desulfurizing waste water processing device | |
| CN208265947U (en) | A kind of less scaling desulfurizing waste water processing device | |
| CN112551627B (en) | Desulfurization waste water enrichment facility and zero discharge system | |
| CN113277663A (en) | Desulfurization wastewater zero-discharge treatment process | |
| CN112875785A (en) | Deep treatment system and method for wet desulphurization wastewater of coal-fired boiler | |
| CN207877490U (en) | A kind of thermal power plant desulfurization wastewater zero-discharge treatment system | |
| CN205461708U (en) | Tower boiler is process units of recirculated flue gas atomizing desulfurization waste water again | |
| CN115893559A (en) | Desulfurization wastewater zero-discharge system and desulfurization wastewater zero-discharge process | |
| CN207748984U (en) | The system of smoke discharging residual heat evaporation desulfurization wastewater is utilized under running on the lower load |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140910 |